Add 40/12 and 45/63
1st number: 3 4/12, 2nd number: 45/63
40/12 + 45/63 is 85/21.
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,
40/12 = 40 × 21/12 × 21 = 840/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
45/63 = 45 × 4/63 × 4 = 180/252 - Add the two like fractions:
840/252 + 180/252 = 840 + 180/252 = 1020/252 - 1020/252 simplified gives 85/21
- So, 40/12 + 45/63 = 85/21
In mixed form: 41/21
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