Add 80/81 and 56/70
80/81 + 56/70 is 724/405.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 70 is 5670
Next, find the equivalent fraction of both fractional numbers with denominator 5670 - For the 1st fraction, since 81 × 70 = 5670,
80/81 = 80 × 70/81 × 70 = 5600/5670 - Likewise, for the 2nd fraction, since 70 × 81 = 5670,
56/70 = 56 × 81/70 × 81 = 4536/5670 - Add the two like fractions:
5600/5670 + 4536/5670 = 5600 + 4536/5670 = 10136/5670 - 10136/5670 simplified gives 724/405
- So, 80/81 + 56/70 = 724/405
In mixed form: 1319/405
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