Add 7/21 and 10/8, Solve 7/21 + 1 2/8 as a fraction

Add 7/21 and 10/8

1^st number: 7/21, 2^nd number: 1 2/8

7/21 + 10/8 is 19/12.

Find the least common denominator or LCM of the two denominators:
LCM of 21 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 21 × 8 = 168,
7/21 = 7 × 8/21 × 8 = 56/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
10/8 = 10 × 21/8 × 21 = 210/168
Add the two like fractions:
56/168 + 210/168 = 56 + 210/168 = 266/168
266/168 simplified gives 19/12
So, 7/21 + 10/8 = 19/12
In mixed form: 17/12

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