Add 54/8 and 15/18
1st number: 6 6/8, 2nd number: 15/18
54/8 + 15/18 is 91/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
54/8 = 54 × 9/8 × 9 = 486/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
15/18 = 15 × 4/18 × 4 = 60/72 - Add the two like fractions:
486/72 + 60/72 = 486 + 60/72 = 546/72 - 546/72 simplified gives 91/12
- So, 54/8 + 15/18 = 91/12
In mixed form: 77/12
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