Add 48/63 and 21/90
48/63 + 21/90 is 209/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 90 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
48/63 = 48 × 10/63 × 10 = 480/630 - Likewise, for the 2nd fraction, since 90 × 7 = 630,
21/90 = 21 × 7/90 × 7 = 147/630 - Add the two like fractions:
480/630 + 147/630 = 480 + 147/630 = 627/630 - 627/630 simplified gives 209/210
- So, 48/63 + 21/90 = 209/210
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