Add 18/42 and 4/12
18/42 + 4/12 is 16/21.
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,
18/42 = 18 × 2/42 × 2 = 36/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
4/12 = 4 × 7/12 × 7 = 28/84 - Add the two like fractions:
36/84 + 28/84 = 36 + 28/84 = 64/84 - 64/84 simplified gives 16/21
- So, 18/42 + 4/12 = 16/21
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