Add 9/4 and 21/63
1st number: 2 1/4, 2nd number: 21/63
9/4 + 21/63 is 31/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 4 × 63 = 252,
9/4 = 9 × 63/4 × 63 = 567/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
21/63 = 21 × 4/63 × 4 = 84/252 - Add the two like fractions:
567/252 + 84/252 = 567 + 84/252 = 651/252 - 651/252 simplified gives 31/12
- So, 9/4 + 21/63 = 31/12
In mixed form: 27/12
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