Add 72/8 and 10/21
1st number: 9 0/8, 2nd number: 10/21
72/8 + 10/21 is 199/21.
Steps for adding fractions
- 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,
10/21 = 10 × 8/21 × 8 = 80/168 - Add the two like fractions:
1512/168 + 80/168 = 1512 + 80/168 = 1592/168 - 1592/168 simplified gives 199/21
- So, 72/8 + 10/21 = 199/21
In mixed form: 910/21
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