Add 80/28 and 42/18
1st number: 2 24/28, 2nd number: 2 6/18
80/28 + 42/18 is 109/21.
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,
42/18 = 42 × 14/18 × 14 = 588/252 - Add the two like fractions:
720/252 + 588/252 = 720 + 588/252 = 1308/252 - 1308/252 simplified gives 109/21
- So, 80/28 + 42/18 = 109/21
In mixed form: 54/21
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