Add 15/40 and 63/56
1st number: 15/40, 2nd number: 1 7/56
15/40 + 63/56 is 3/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
15/40 = 15 × 7/40 × 7 = 105/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
63/56 = 63 × 5/56 × 5 = 315/280 - Add the two like fractions:
105/280 + 315/280 = 105 + 315/280 = 420/280 - 420/280 simplified gives 3/2
- So, 15/40 + 63/56 = 3/2
In mixed form: 11/2
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