Add 56/15 and 42/80
1st number: 3 11/15, 2nd number: 42/80
56/15 + 42/80 is 511/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
56/15 = 56 × 16/15 × 16 = 896/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
42/80 = 42 × 3/80 × 3 = 126/240 - Add the two like fractions:
896/240 + 126/240 = 896 + 126/240 = 1022/240 - 1022/240 simplified gives 511/120
- So, 56/15 + 42/80 = 511/120
In mixed form: 431/120
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