Add 21/15 and 63/56
1st number: 1 6/15, 2nd number: 1 7/56
21/15 + 63/56 is 101/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 56 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 15 × 56 = 840,
21/15 = 21 × 56/15 × 56 = 1176/840 - Likewise, for the 2nd fraction, since 56 × 15 = 840,
63/56 = 63 × 15/56 × 15 = 945/840 - Add the two like fractions:
1176/840 + 945/840 = 1176 + 945/840 = 2121/840 - 2121/840 simplified gives 101/40
- So, 21/15 + 63/56 = 101/40
In mixed form: 221/40
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