Add 30/42 and 15/54
30/42 + 15/54 is 125/126.
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,
30/42 = 30 × 9/42 × 9 = 270/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
15/54 = 15 × 7/54 × 7 = 105/378 - Add the two like fractions:
270/378 + 105/378 = 270 + 105/378 = 375/378 - 375/378 simplified gives 125/126
- So, 30/42 + 15/54 = 125/126
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