Add 81/15 and 20/8
1st number: 5 6/15, 2nd number: 2 4/8
81/15 + 20/8 is 79/10.
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,
20/8 = 20 × 15/8 × 15 = 300/120 - Add the two like fractions:
648/120 + 300/120 = 648 + 300/120 = 948/120 - 948/120 simplified gives 79/10
- So, 81/15 + 20/8 = 79/10
In mixed form: 79/10
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