Add 12/42 and 15/54
12/42 + 15/54 is 71/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
12/42 = 12 × 9/42 × 9 = 108/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378 - Add the two like fractions:
108/378 + 105/378 = 108 + 105/378 = 213/378 - 213/378 simplified gives 71/126
- So, 12/42 + 15/54 = 71/126
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