Question

a) 4/5 -3/10.
ayuda



b) 3/4 + 3/8


c) 7/3 - 5/12


d) 5/3 + 1/2?????
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Answer 1

Explicación paso a paso:

a) 4/5 -3/10.  

$\frac{4}{5} - \frac{3}{10}=\frac{(4)(2) -(3)(1) }{10} =\frac{8-3}{10} =\frac{5}{10} =\frac{1}{2}$  

b) 3/4 + 3/8

$\frac{3}{4} + \frac{3}{8}=\frac{(3)(2) +(3)(1) }{8} =\frac{6+3}{8} =\frac{9}{8}$

 

c) 7/3 - 5/12

$\frac{7}{3} - \frac{5}{12}=\frac{(7)(4) -(5)(1) }{12} =\frac{28-5}{12} =\frac{23}{12}$

d) 5/3 + 1/2

$\frac{5}{3} + \frac{1}{2}=\frac{(5)(2) +(1)(3) }{6} =\frac{10+3}{6} =\frac{13}{6}$