Add 72/8 and 2/21, Solve 9 0/8 + 2/21 as a fraction

Add 72/8 and 2/21

1^st number: 9 0/8, 2^nd number: 2/21

72/8 + 2/21 is 191/21.

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

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
72/8 = 72 × 21/8 × 21 = 1512/168
Likewise, for the 2nd fraction, since 21 × 8 = 168,
2/21 = 2 × 8/21 × 8 = 16/168
Add the two like fractions:
1512/168 + 16/168 = 1512 + 16/168 = 1528/168
1528/168 simplified gives 191/21
So, 72/8 + 2/21 = 191/21
In mixed form: 92/21

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