Add 18/28 and 81/80
1st number: 18/28, 2nd number: 1 1/80
18/28 + 81/80 is 927/560.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
18/28 = 18 × 20/28 × 20 = 360/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Add the two like fractions:
360/560 + 567/560 = 360 + 567/560 = 927/560 - So, 18/28 + 81/80 = 927/560
In mixed form: 1367/560
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