Add 70/80 and 35/81
70/80 + 35/81 is 847/648.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 81 is 6480
Next, find the equivalent fraction of both fractional numbers with denominator 6480 - For the 1st fraction, since 80 × 81 = 6480,
70/80 = 70 × 81/80 × 81 = 5670/6480 - Likewise, for the 2nd fraction, since 81 × 80 = 6480,
35/81 = 35 × 80/81 × 80 = 2800/6480 - Add the two like fractions:
5670/6480 + 2800/6480 = 5670 + 2800/6480 = 8470/6480 - 8470/6480 simplified gives 847/648
- So, 70/80 + 35/81 = 847/648
In mixed form: 1199/648
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