Add 70/9 and 42/7, Solve 7 7/9 + 6 0/7 as a fraction

Add 70/9 and 42/7

1^st number: 7 7/9, 2^nd number: 6 0/7

70/9 + 42/7 is 124/9.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 9 × 7 = 63,
70/9 = 70 × 7/9 × 7 = 490/63
Likewise, for the 2nd fraction, since 7 × 9 = 63,
42/7 = 42 × 9/7 × 9 = 378/63
Add the two like fractions:
490/63 + 378/63 = 490 + 378/63 = 868/63
868/63 simplified gives 124/9
So, 70/9 + 42/7 = 124/9
In mixed form: 137/9

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