Por favor ayuda
a) 7/4 b )5/3 c) 9/2 d) 11/5
1(a + b) - c
2(d - b + c) - a
nos dieron una ayuda que es (?/60 + ?/60)=?/60 y hay que reducir fracciones.
tienes q hacer las operaciones como por ejemplo (a + b) significa 7/4 + 5/3
Respuestas
Respuesta dada por:
1
1. ![\frac{7}{4} + \frac{5}{3} = \frac{7(3)+4(5)}{4(3)} = \frac{21+20}{12} = \frac{41}{12}
\frac{7}{4} + \frac{5}{3} = \frac{7(3)+4(5)}{4(3)} = \frac{21+20}{12} = \frac{41}{12}](https://tex.z-dn.net/?f=+%5Cfrac%7B7%7D%7B4%7D+%2B++%5Cfrac%7B5%7D%7B3%7D+%3D++%5Cfrac%7B7%283%29%2B4%285%29%7D%7B4%283%29%7D+%3D+%5Cfrac%7B21%2B20%7D%7B12%7D+%3D+%5Cfrac%7B41%7D%7B12%7D+%0A)
![\frac{41}{12} - \frac{9}{2} = \frac{41(2)-12(9)}{12(2)} = \frac{82-108}{24}= \frac{-26}{24}= \frac{-13}{12} \frac{41}{12} - \frac{9}{2} = \frac{41(2)-12(9)}{12(2)} = \frac{82-108}{24}= \frac{-26}{24}= \frac{-13}{12}](https://tex.z-dn.net/?f=+%5Cfrac%7B41%7D%7B12%7D+-+%5Cfrac%7B9%7D%7B2%7D+%3D++%5Cfrac%7B41%282%29-12%289%29%7D%7B12%282%29%7D+%3D+%5Cfrac%7B82-108%7D%7B24%7D%3D+%5Cfrac%7B-26%7D%7B24%7D%3D+%5Cfrac%7B-13%7D%7B12%7D+)
2.![\frac{11}{5} - \frac{5}{3} + \frac{9}{2} = \frac{11(6)-5(10)+9(15)}{30} = \frac{66-50+135}{30} = \frac{151}{30} \frac{11}{5} - \frac{5}{3} + \frac{9}{2} = \frac{11(6)-5(10)+9(15)}{30} = \frac{66-50+135}{30} = \frac{151}{30}](https://tex.z-dn.net/?f=+%5Cfrac%7B11%7D%7B5%7D+-+%5Cfrac%7B5%7D%7B3%7D+%2B+%5Cfrac%7B9%7D%7B2%7D+%3D+%5Cfrac%7B11%286%29-5%2810%29%2B9%2815%29%7D%7B30%7D+%3D+%5Cfrac%7B66-50%2B135%7D%7B30%7D+%3D+%5Cfrac%7B151%7D%7B30%7D+)
![\frac{151}{30} - \frac{7}{4} = \frac{151(2)-7(15)}{60} = \frac{302-105}{60} = \frac{197}{60} = 3\frac{17}{60} \frac{151}{30} - \frac{7}{4} = \frac{151(2)-7(15)}{60} = \frac{302-105}{60} = \frac{197}{60} = 3\frac{17}{60}](https://tex.z-dn.net/?f=%5Cfrac%7B151%7D%7B30%7D+-+%5Cfrac%7B7%7D%7B4%7D+%3D+%5Cfrac%7B151%282%29-7%2815%29%7D%7B60%7D+%3D+%5Cfrac%7B302-105%7D%7B60%7D+%3D+%5Cfrac%7B197%7D%7B60%7D+%3D+3%5Cfrac%7B17%7D%7B60%7D+)
2.
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