Add 70/81 and 45/80
70/81 + 45/80 is 1849/1296.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 80 is 6480
Next, find the equivalent fraction of both fractional numbers with denominator 6480 - For the 1st fraction, since 81 × 80 = 6480,
70/81 = 70 × 80/81 × 80 = 5600/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
45/80 = 45 × 81/80 × 81 = 3645/6480 - Add the two like fractions:
5600/6480 + 3645/6480 = 5600 + 3645/6480 = 9245/6480 - 9245/6480 simplified gives 1849/1296
- So, 70/81 + 45/80 = 1849/1296
In mixed form: 1553/1296
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