Add 28/72 and 20/56
28/72 + 20/56 is 47/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 56 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
28/72 = 28 × 7/72 × 7 = 196/504 - Likewise, for the 2nd fraction, since 56 × 9 = 504,
20/56 = 20 × 9/56 × 9 = 180/504 - Add the two like fractions:
196/504 + 180/504 = 196 + 180/504 = 376/504 - 376/504 simplified gives 47/63
- So, 28/72 + 20/56 = 47/63
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