Add 28/72 and 30/80
28/72 + 30/80 is 55/72.
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,
30/80 = 30 × 9/80 × 9 = 270/720 - Add the two like fractions:
280/720 + 270/720 = 280 + 270/720 = 550/720 - 550/720 simplified gives 55/72
- So, 28/72 + 30/80 = 55/72
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