Add 63/42 and 75/12
1st number: 1 21/42, 2nd number: 6 3/12
63/42 + 75/12 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
63/42 = 63 × 2/42 × 2 = 126/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
75/12 = 75 × 7/12 × 7 = 525/84 - Add the two like fractions:
126/84 + 525/84 = 126 + 525/84 = 651/84 - 651/84 simplified gives 31/4
- So, 63/42 + 75/12 = 31/4
In mixed form: 73/4
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