Add 20/18 and 45/28
1st number: 1 2/18, 2nd number: 1 17/28
20/18 + 45/28 is 685/252.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
20/18 = 20 × 14/18 × 14 = 280/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Add the two like fractions:
280/252 + 405/252 = 280 + 405/252 = 685/252 - So, 20/18 + 45/28 = 685/252
In mixed form: 2181/252
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