Add 7/21 and 70/63, Solve 7/21 + 1 7/63 as a fraction

Add 7/21 and 70/63

1^st number: 7/21, 2^nd number: 1 7/63

7/21 + 70/63 is 13/9.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63

Next, find the equivalent fraction of both fractional numbers with denominator 63
For the 1st fraction, since 21 × 3 = 63,
7/21 = 7 × 3/21 × 3 = 21/63
Likewise, for the 2nd fraction, since 63 × 1 = 63,
70/63 = 70 × 1/63 × 1 = 70/63
Add the two like fractions:
21/63 + 70/63 = 21 + 70/63 = 91/63
91/63 simplified gives 13/9
So, 7/21 + 70/63 = 13/9
In mixed form: 14/9

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