Add 56/63 and 21/54
56/63 + 21/54 is 23/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 63 × 6 = 378,
56/63 = 56 × 6/63 × 6 = 336/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
21/54 = 21 × 7/54 × 7 = 147/378 - Add the two like fractions:
336/378 + 147/378 = 336 + 147/378 = 483/378 - 483/378 simplified gives 23/18
- So, 56/63 + 21/54 = 23/18
In mixed form: 15/18
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