Add 40/12 and 84/63
1st number: 3 4/12, 2nd number: 1 21/63
40/12 + 84/63 is 14/3.
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,
84/63 = 84 × 4/63 × 4 = 336/252 - Add the two like fractions:
840/252 + 336/252 = 840 + 336/252 = 1176/252 - 1176/252 simplified gives 14/3
- So, 40/12 + 84/63 = 14/3
In mixed form: 42/3
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