Add 3/20 and 45/63
3/20 + 45/63 is 121/140.
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,
3/20 = 3 × 63/20 × 63 = 189/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Add the two like fractions:
189/1260 + 900/1260 = 189 + 900/1260 = 1089/1260 - 1089/1260 simplified gives 121/140
- So, 3/20 + 45/63 = 121/140
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