Add 42/15 and 56/80
1st number: 2 12/15, 2nd number: 56/80
42/15 + 56/80 is 7/2.
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,
42/15 = 42 × 16/15 × 16 = 672/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
56/80 = 56 × 3/80 × 3 = 168/240 - Add the two like fractions:
672/240 + 168/240 = 672 + 168/240 = 840/240 - 840/240 simplified gives 7/2
- So, 42/15 + 56/80 = 7/2
In mixed form: 31/2
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