Add 30/54 and 21/63
30/54 + 21/63 is 8/9.
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,
30/54 = 30 × 7/54 × 7 = 210/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
21/63 = 21 × 6/63 × 6 = 126/378 - Add the two like fractions:
210/378 + 126/378 = 210 + 126/378 = 336/378 - 336/378 simplified gives 8/9
- So, 30/54 + 21/63 = 8/9
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