Add 9/54 and 15/42
9/54 + 15/42 is 11/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 42 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Likewise, for the 2nd fraction, since 42 × 9 = 378,
15/42 = 15 × 9/42 × 9 = 135/378 - Add the two like fractions:
63/378 + 135/378 = 63 + 135/378 = 198/378 - 198/378 simplified gives 11/21
- So, 9/54 + 15/42 = 11/21
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