Add 21/18 and 63/56
1st number: 1 3/18, 2nd number: 1 7/56
21/18 + 63/56 is 55/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 18 × 28 = 504,
21/18 = 21 × 28/18 × 28 = 588/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
63/56 = 63 × 9/56 × 9 = 567/504 - Add the two like fractions:
588/504 + 567/504 = 588 + 567/504 = 1155/504 - 1155/504 simplified gives 55/24
- So, 21/18 + 63/56 = 55/24
In mixed form: 27/24
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