Add 40/20 and 15/63
1st number: 2 0/20, 2nd number: 15/63
40/20 + 15/63 is 47/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
40/20 = 40 × 63/20 × 63 = 2520/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
15/63 = 15 × 20/63 × 20 = 300/1260 - Add the two like fractions:
2520/1260 + 300/1260 = 2520 + 300/1260 = 2820/1260 - 2820/1260 simplified gives 47/21
- So, 40/20 + 15/63 = 47/21
In mixed form: 25/21
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