Add 18/72 and 20/63
18/72 + 20/63 is 143/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 63 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
18/72 = 18 × 7/72 × 7 = 126/504 - Likewise, for the 2nd fraction, since 63 × 8 = 504,
20/63 = 20 × 8/63 × 8 = 160/504 - Add the two like fractions:
126/504 + 160/504 = 126 + 160/504 = 286/504 - 286/504 simplified gives 143/252
- So, 18/72 + 20/63 = 143/252
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