Add 18/54 and 12/63
18/54 + 12/63 is 11/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
12/63 = 12 × 6/63 × 6 = 72/378 - Add the two like fractions:
126/378 + 72/378 = 126 + 72/378 = 198/378 - 198/378 simplified gives 11/21
- So, 18/54 + 12/63 = 11/21
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