Add 3/7 and 70/8, Solve 3/7 + 8 6/8 as a fraction

Add 3/7 and 70/8

1^st number: 3/7, 2^nd number: 8 6/8

3/7 + 70/8 is 257/28.

Find the least common denominator or LCM of the two denominators:
LCM of 7 and 8 is 56

Next, find the equivalent fraction of both fractional numbers with denominator 56
For the 1st fraction, since 7 × 8 = 56,
3/7 = 3 × 8/7 × 8 = 24/56
Likewise, for the 2nd fraction, since 8 × 7 = 56,
70/8 = 70 × 7/8 × 7 = 490/56
Add the two like fractions:
24/56 + 490/56 = 24 + 490/56 = 514/56
514/56 simplified gives 257/28
So, 3/7 + 70/8 = 257/28
In mixed form: 95/28

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