Add 40/63 and 10/21
40/63 + 10/21 is 10/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 21 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 63 × 1 = 63,
40/63 = 40 × 1/63 × 1 = 40/63 - Likewise, for the 2nd fraction, since 21 × 3 = 63,
10/21 = 10 × 3/21 × 3 = 30/63 - Add the two like fractions:
40/63 + 30/63 = 40 + 30/63 = 70/63 - 70/63 simplified gives 10/9
- So, 40/63 + 10/21 = 10/9
In mixed form: 11/9
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