Add 9/21 and 63/10, Solve 9/21 + 6 3/10 as a fraction

Add 9/21 and 63/10

1^st number: 9/21, 2^nd number: 6 3/10

9/21 + 63/10 is 471/70.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 10 is 210

Next, find the equivalent fraction of both fractional numbers with denominator 210
For the 1st fraction, since 21 × 10 = 210,
9/21 = 9 × 10/21 × 10 = 90/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
63/10 = 63 × 21/10 × 21 = 1323/210
Add the two like fractions:
90/210 + 1323/210 = 90 + 1323/210 = 1413/210
1413/210 simplified gives 471/70
So, 9/21 + 63/10 = 471/70
In mixed form: 651/70

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