Add 54/72 and 9/8
1st number: 54/72, 2nd number: 1 1/8
54/72 + 9/8 is 15/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 72 × 1 = 72,
54/72 = 54 × 1/72 × 1 = 54/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
9/8 = 9 × 9/8 × 9 = 81/72 - Add the two like fractions:
54/72 + 81/72 = 54 + 81/72 = 135/72 - 135/72 simplified gives 15/8
- So, 54/72 + 9/8 = 15/8
In mixed form: 17/8
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