Add 20/63 and 42/72
20/63 + 42/72 is 227/252.
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,
42/72 = 42 × 7/72 × 7 = 294/504 - Add the two like fractions:
160/504 + 294/504 = 160 + 294/504 = 454/504 - 454/504 simplified gives 227/252
- So, 20/63 + 42/72 = 227/252
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