Add 30/72 and 12/80
30/72 + 12/80 is 17/30.
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,
30/72 = 30 × 10/72 × 10 = 300/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
12/80 = 12 × 9/80 × 9 = 108/720 - Add the two like fractions:
300/720 + 108/720 = 300 + 108/720 = 408/720 - 408/720 simplified gives 17/30
- So, 30/72 + 12/80 = 17/30
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