Add 18/63 and 20/80
18/63 + 20/80 is 15/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
18/63 = 18 × 80/63 × 80 = 1440/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
20/80 = 20 × 63/80 × 63 = 1260/5040 - Add the two like fractions:
1440/5040 + 1260/5040 = 1440 + 1260/5040 = 2700/5040 - 2700/5040 simplified gives 15/28
- So, 18/63 + 20/80 = 15/28
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