Add 21/4 and 30/63
1st number: 5 1/4, 2nd number: 30/63
21/4 + 30/63 is 481/84.
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,
21/4 = 21 × 63/4 × 63 = 1323/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
30/63 = 30 × 4/63 × 4 = 120/252 - Add the two like fractions:
1323/252 + 120/252 = 1323 + 120/252 = 1443/252 - 1443/252 simplified gives 481/84
- So, 21/4 + 30/63 = 481/84
In mixed form: 561/84
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