Add 84/12 and 63/42
1st number: 7 0/12, 2nd number: 1 21/42
84/12 + 63/42 is 17/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
84/12 = 84 × 7/12 × 7 = 588/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
63/42 = 63 × 2/42 × 2 = 126/84 - Add the two like fractions:
588/84 + 126/84 = 588 + 126/84 = 714/84 - 714/84 simplified gives 17/2
- So, 84/12 + 63/42 = 17/2
In mixed form: 81/2
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