Add 80/28 and 21/18
1st number: 2 24/28, 2nd number: 1 3/18
80/28 + 21/18 is 169/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
80/28 = 80 × 9/28 × 9 = 720/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
21/18 = 21 × 14/18 × 14 = 294/252 - Add the two like fractions:
720/252 + 294/252 = 720 + 294/252 = 1014/252 - 1014/252 simplified gives 169/42
- So, 80/28 + 21/18 = 169/42
In mixed form: 41/42
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