Add 81/80 and 15/28
1st number: 1 1/80, 2nd number: 15/28
81/80 + 15/28 is 867/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
15/28 = 15 × 20/28 × 20 = 300/560 - Add the two like fractions:
567/560 + 300/560 = 567 + 300/560 = 867/560 - So, 81/80 + 15/28 = 867/560
In mixed form: 1307/560
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