Add 9/63 and 20/30
9/63 + 20/30 is 17/21.
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,
9/63 = 9 × 10/63 × 10 = 90/630 - Likewise, for the 2nd fraction, since 30 × 21 = 630,
20/30 = 20 × 21/30 × 21 = 420/630 - Add the two like fractions:
90/630 + 420/630 = 90 + 420/630 = 510/630 - 510/630 simplified gives 17/21
- So, 9/63 + 20/30 = 17/21
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