Add 18/63 and 5/20
18/63 + 5/20 is 15/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
18/63 = 18 × 20/63 × 20 = 360/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
5/20 = 5 × 63/20 × 63 = 315/1260 - Add the two like fractions:
360/1260 + 315/1260 = 360 + 315/1260 = 675/1260 - 675/1260 simplified gives 15/28
- So, 18/63 + 5/20 = 15/28
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