Add 21/56 and 24/15
1st number: 21/56, 2nd number: 1 9/15
21/56 + 24/15 is 79/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
21/56 = 21 × 15/56 × 15 = 315/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
24/15 = 24 × 56/15 × 56 = 1344/840 - Add the two like fractions:
315/840 + 1344/840 = 315 + 1344/840 = 1659/840 - 1659/840 simplified gives 79/40
- So, 21/56 + 24/15 = 79/40
In mixed form: 139/40
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