Question

i need help

p.s. answers

Answer 1

Answer:

Step-by-step explanation:

a)l.c.m=40

then,

24+35/40

59/40

b)l.c.m=42

7-6/42

1/42

Answer 2

$\frac{3}{5} + \frac{7}{8} \\ \\ \frac{24 + 35}{40} \\ \\ \frac{59}{40}$

$\frac{1}{6} - \frac{1}{7} \\ \\ \frac{7 - 6}{42} \\ \\ \frac{1}{42}$

$\frac{3}{4} + \frac{5}{6} \\ \\ \frac{9 + 10}{12} \\ \\ \frac{19}{12}$

$\frac{4}{7} - \frac{1}{3} \\ \\ \frac{12 - 7}{21} \\ \\ \frac{5}{21}$