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