Add 15/27 and 3/42
15/27 + 3/42 is 79/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 27 × 14 = 378,
15/27 = 15 × 14/27 × 14 = 210/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
3/42 = 3 × 9/42 × 9 = 27/378 - Add the two like fractions:
210/378 + 27/378 = 210 + 27/378 = 237/378 - 237/378 simplified gives 79/126
- So, 15/27 + 3/42 = 79/126
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