Add 7/18 and 81/72
1st number: 7/18, 2nd number: 1 9/72
7/18 + 81/72 is 109/72.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
7/18 = 7 × 4/18 × 4 = 28/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
81/72 = 81 × 1/72 × 1 = 81/72 - Add the two like fractions:
28/72 + 81/72 = 28 + 81/72 = 109/72 - So, 7/18 + 81/72 = 109/72
In mixed form: 137/72
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