Add 21/63 and 2/10
21/63 + 2/10 is 8/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 10 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 63 × 10 = 630,
21/63 = 21 × 10/63 × 10 = 210/630 - Likewise, for the 2nd fraction, since 10 × 63 = 630,
2/10 = 2 × 63/10 × 63 = 126/630 - Add the two like fractions:
210/630 + 126/630 = 210 + 126/630 = 336/630 - 336/630 simplified gives 8/15
- So, 21/63 + 2/10 = 8/15
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