Add 15/18 and 18/72
15/18 + 18/72 is 13/12.
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,
15/18 = 15 × 4/18 × 4 = 60/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Add the two like fractions:
60/72 + 18/72 = 60 + 18/72 = 78/72 - 78/72 simplified gives 13/12
- So, 15/18 + 18/72 = 13/12
In mixed form: 11/12
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