Add 20/63 and 45/60
20/63 + 45/60 is 269/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 60 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
20/63 = 20 × 20/63 × 20 = 400/1260 - Likewise, for the 2nd fraction, since 60 × 21 = 1260,
45/60 = 45 × 21/60 × 21 = 945/1260 - Add the two like fractions:
400/1260 + 945/1260 = 400 + 945/1260 = 1345/1260 - 1345/1260 simplified gives 269/252
- So, 20/63 + 45/60 = 269/252
In mixed form: 117/252
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