Add 4/12 and 45/63
4/12 + 45/63 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
4/12 = 4 × 21/12 × 21 = 84/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
45/63 = 45 × 4/63 × 4 = 180/252 - Add the two like fractions:
84/252 + 180/252 = 84 + 180/252 = 264/252 - 264/252 simplified gives 22/21
- So, 4/12 + 45/63 = 22/21
In mixed form: 11/21
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