Add 56/63 and 21/30
56/63 + 21/30 is 143/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 30 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
56/63 = 56 × 10/63 × 10 = 560/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
21/30 = 21 × 21/30 × 21 = 441/630 - Add the two like fractions:
560/630 + 441/630 = 560 + 441/630 = 1001/630 - 1001/630 simplified gives 143/90
- So, 56/63 + 21/30 = 143/90
In mixed form: 153/90
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