Add 15/56 and 63/40
1st number: 15/56, 2nd number: 1 23/40
15/56 + 63/40 is 129/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
15/56 = 15 × 5/56 × 5 = 75/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
63/40 = 63 × 7/40 × 7 = 441/280 - Add the two like fractions:
75/280 + 441/280 = 75 + 441/280 = 516/280 - 516/280 simplified gives 129/70
- So, 15/56 + 63/40 = 129/70
In mixed form: 159/70
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