Add 20/63 and 28/72
20/63 + 28/72 is 89/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 63 × 8 = 504,
20/63 = 20 × 8/63 × 8 = 160/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Add the two like fractions:
160/504 + 196/504 = 160 + 196/504 = 356/504 - 356/504 simplified gives 89/126
- So, 20/63 + 28/72 = 89/126
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