Add 15/24 and 81/72
1st number: 15/24, 2nd number: 1 9/72
15/24 + 81/72 is 7/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
15/24 = 15 × 3/24 × 3 = 45/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
81/72 = 81 × 1/72 × 1 = 81/72 - Add the two like fractions:
45/72 + 81/72 = 45 + 81/72 = 126/72 - 126/72 simplified gives 7/4
- So, 15/24 + 81/72 = 7/4
In mixed form: 13/4
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