Add 75/5 and 81/80
1st number: 15 0/5, 2nd number: 1 1/80
75/5 + 81/80 is 1281/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 5 × 16 = 80,
75/5 = 75 × 16/5 × 16 = 1200/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
81/80 = 81 × 1/80 × 1 = 81/80 - Add the two like fractions:
1200/80 + 81/80 = 1200 + 81/80 = 1281/80 - So, 75/5 + 81/80 = 1281/80
In mixed form: 161/80
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