Question

Calculati: a) 15/7 * 1\18 b) 1\9 * 3\10 c)4\5 * 9\8 d)7\8 * 2\31 e) 9\43 * 5\21 f) 7\45 * 15\28 g) 7\23 * 11\9 h) 1\14 * 49\26.

Answer 1

a)=15/126=5/42
b)=3/90=1/30
c)=36/40=9/10
d)=14/248=7/124
e)=45/903=15/301
f)=105/1260=1/12
g)=77/207
h)=49/364=7/52

Answer 2

a) 15/7 * 1/18 = 5/7 * 1/6 = 5/42
b) 1/9 * 3/10 = 1/3 * 1/10 = 1/30
c) 4/5 * 9/8 = 1/5 * 9/2 = 9/10
d) 7/8 * 2/31 = 7/4 * 1/31 = 7/124
e) 9/42 * 5/21 = 3/42 * 5/7 = 15/294
f) 7/45 * 15/28 = 1/3 * 1/4 = 1/12
g) 7/23 * 11/9 = 77/207
h) 1/14 * 49/26 = 1/2 * 7/26 = 7/52