Add 75/84 and 81/80
1st number: 75/84, 2nd number: 1 1/80
75/84 + 81/80 is 1067/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 80 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 84 × 20 = 1680,
75/84 = 75 × 20/84 × 20 = 1500/1680 - Likewise, for the 2nd fraction, since 80 × 21 = 1680,
81/80 = 81 × 21/80 × 21 = 1701/1680 - Add the two like fractions:
1500/1680 + 1701/1680 = 1500 + 1701/1680 = 3201/1680 - 3201/1680 simplified gives 1067/560
- So, 75/84 + 81/80 = 1067/560
In mixed form: 1507/560
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