Add 63/9 and 21/70, Solve 7 0/9 + 21/70 as a fraction

Add 63/9 and 21/70

1^st number: 7 0/9, 2^nd number: 21/70

63/9 + 21/70 is 73/10.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 70 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 9 × 70 = 630,
63/9 = 63 × 70/9 × 70 = 4410/630
Likewise, for the 2nd fraction, since 70 × 9 = 630,
21/70 = 21 × 9/70 × 9 = 189/630
Add the two like fractions:
4410/630 + 189/630 = 4410 + 189/630 = 4599/630
4599/630 simplified gives 73/10
So, 63/9 + 21/70 = 73/10
In mixed form: 73/10

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