Add 7/21 and 63/10, Solve 7/21 + 6 3/10 as a fraction

Add 7/21 and 63/10

1^st number: 7/21, 2^nd number: 6 3/10

7/21 + 63/10 is 199/30.

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,
7/21 = 7 × 10/21 × 10 = 70/210
Likewise, for the 2nd fraction, since 10 × 21 = 210,
63/10 = 63 × 21/10 × 21 = 1323/210
Add the two like fractions:
70/210 + 1323/210 = 70 + 1323/210 = 1393/210
1393/210 simplified gives 199/30
So, 7/21 + 63/10 = 199/30
In mixed form: 619/30

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