Add 72/80 and 7/18
72/80 + 7/18 is 58/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
72/80 = 72 × 9/80 × 9 = 648/720 - Likewise, for the 2nd fraction, since 18 × 40 = 720,
7/18 = 7 × 40/18 × 40 = 280/720 - Add the two like fractions:
648/720 + 280/720 = 648 + 280/720 = 928/720 - 928/720 simplified gives 58/45
- So, 72/80 + 7/18 = 58/45
In mixed form: 113/45
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