Add 9/30 and 21/63
9/30 + 21/63 is 19/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 63 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 30 × 21 = 630,
9/30 = 9 × 21/30 × 21 = 189/630 - Likewise, for the 2nd fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Add the two like fractions:
189/630 + 210/630 = 189 + 210/630 = 399/630 - 399/630 simplified gives 19/30
- So, 9/30 + 21/63 = 19/30
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