Add 21/14 and 63/72
1st number: 1 7/14, 2nd number: 63/72
21/14 + 63/72 is 19/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 14 × 36 = 504,
21/14 = 21 × 36/14 × 36 = 756/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
63/72 = 63 × 7/72 × 7 = 441/504 - Add the two like fractions:
756/504 + 441/504 = 756 + 441/504 = 1197/504 - 1197/504 simplified gives 19/8
- So, 21/14 + 63/72 = 19/8
In mixed form: 23/8
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