Add 7/81 and 8/80
7/81 + 8/80 is 151/810.
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,
7/81 = 7 × 80/81 × 80 = 560/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
8/80 = 8 × 81/80 × 81 = 648/6480 - Add the two like fractions:
560/6480 + 648/6480 = 560 + 648/6480 = 1208/6480 - 1208/6480 simplified gives 151/810
- So, 7/81 + 8/80 = 151/810
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