Add 81/72 and 80/5
1st number: 1 9/72, 2nd number: 16 0/5
81/72 + 80/5 is 137/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 5 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Likewise, for the 2nd fraction, since 5 × 72 = 360,
80/5 = 80 × 72/5 × 72 = 5760/360 - Add the two like fractions:
405/360 + 5760/360 = 405 + 5760/360 = 6165/360 - 6165/360 simplified gives 137/8
- So, 81/72 + 80/5 = 137/8
In mixed form: 171/8
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