Add 81/15 and 9/8
1st number: 5 6/15, 2nd number: 1 1/8
81/15 + 9/8 is 261/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
81/15 = 81 × 8/15 × 8 = 648/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
9/8 = 9 × 15/8 × 15 = 135/120 - Add the two like fractions:
648/120 + 135/120 = 648 + 135/120 = 783/120 - 783/120 simplified gives 261/40
- So, 81/15 + 9/8 = 261/40
In mixed form: 621/40
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