Add 72/81 and 27/80
72/81 + 27/80 is 883/720.
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,
72/81 = 72 × 80/81 × 80 = 5760/6480 - Likewise, for the 2nd fraction, since 80 × 81 = 6480,
27/80 = 27 × 81/80 × 81 = 2187/6480 - Add the two like fractions:
5760/6480 + 2187/6480 = 5760 + 2187/6480 = 7947/6480 - 7947/6480 simplified gives 883/720
- So, 72/81 + 27/80 = 883/720
In mixed form: 1163/720
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