Add 70/81 and 63/80
70/81 + 63/80 is 10703/6480.
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,
63/80 = 63 × 81/80 × 81 = 5103/6480 - Add the two like fractions:
5600/6480 + 5103/6480 = 5600 + 5103/6480 = 10703/6480 - So, 70/81 + 63/80 = 10703/6480
In mixed form: 14223/6480
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