Add 9/42 and 9/54
9/42 + 9/54 is 8/21.
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,
9/42 = 9 × 9/42 × 9 = 81/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
9/54 = 9 × 7/54 × 7 = 63/378 - Add the two like fractions:
81/378 + 63/378 = 81 + 63/378 = 144/378 - 144/378 simplified gives 8/21
- So, 9/42 + 9/54 = 8/21
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