Add 28/72 and 20/80
28/72 + 20/80 is 23/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
28/72 = 28 × 10/72 × 10 = 280/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
20/80 = 20 × 9/80 × 9 = 180/720 - Add the two like fractions:
280/720 + 180/720 = 280 + 180/720 = 460/720 - 460/720 simplified gives 23/36
- So, 28/72 + 20/80 = 23/36
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