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ANSWER: 1
21/5+23/10
L . C. M . is 10
so,(41+23)/10
= 64/10
ANSWER: 2
40×10/23
=400/23
=17whole 9/23
Answered by
1
a)
First change the mixed fractions into normal fractions. Then do lcm of the denominators and next add them with proper process.
∴ 4 1/5 + 2 3/10
= 21/5 + 23/10
= (21 × 2 + 23 × 1)/10 [ lcm of 5, 10 is 10 ]
= (42 + 23)/10
= 65/10
= 6 5/10
b)
First change the mixed fraction into normal fraction. Use the law: a ÷ b/c = a × c/b.
∴ 40 ÷ 2 3/10
= 40 ÷ 23/10
= 40 × 10/23
= 400/23
= 17 9/23
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