Add 15/8 and 18/72
1st number: 1 7/8, 2nd number: 18/72
15/8 + 18/72 is 17/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
15/8 = 15 × 9/8 × 9 = 135/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
18/72 = 18 × 1/72 × 1 = 18/72 - Add the two like fractions:
135/72 + 18/72 = 135 + 18/72 = 153/72 - 153/72 simplified gives 17/8
- So, 15/8 + 18/72 = 17/8
In mixed form: 21/8
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