Add 90/7 and 30/63, Solve 12 6/7 + 30/63 as a fraction

Add 90/7 and 30/63

1^st number: 12 6/7, 2^nd number: 30/63

90/7 + 30/63 is 40/3.

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

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 7 × 9 = 63,
90/7 = 90 × 9/7 × 9 = 810/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
30/63 = 30 × 1/63 × 1 = 30/63
Add the two like fractions:
810/63 + 30/63 = 810 + 30/63 = 840/63
840/63 simplified gives 40/3
So, 90/7 + 30/63 = 40/3
In mixed form: 131/3

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