Add 72/80 and 75/84
72/80 + 75/84 is 251/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 84 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
72/80 = 72 × 21/80 × 21 = 1512/1680 - Likewise, for the 2nd fraction, since 84 × 20 = 1680,
75/84 = 75 × 20/84 × 20 = 1500/1680 - Add the two like fractions:
1512/1680 + 1500/1680 = 1512 + 1500/1680 = 3012/1680 - 3012/1680 simplified gives 251/140
- So, 72/80 + 75/84 = 251/140
In mixed form: 1111/140
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