Add 72/80 and 18/56
72/80 + 18/56 is 171/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 56 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
72/80 = 72 × 7/80 × 7 = 504/560 - Likewise, for the 2nd fraction, since 56 × 10 = 560,
18/56 = 18 × 10/56 × 10 = 180/560 - Add the two like fractions:
504/560 + 180/560 = 504 + 180/560 = 684/560 - 684/560 simplified gives 171/140
- So, 72/80 + 18/56 = 171/140
In mixed form: 131/140
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