Add 5/7 and 70/18, Solve 5/7 + 3 16/18 as a fraction

Add 5/7 and 70/18

1^st number: 5/7, 2^nd number: 3 16/18

5/7 + 70/18 is 290/63.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 7 × 18 = 126,
5/7 = 5 × 18/7 × 18 = 90/126
Likewise, for the 2nd fraction, since 18 × 7 = 126,
70/18 = 70 × 7/18 × 7 = 490/126
Add the two like fractions:
90/126 + 490/126 = 90 + 490/126 = 580/126
580/126 simplified gives 290/63
So, 5/7 + 70/18 = 290/63
In mixed form: 438/63

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