Add 28/42 and 20/36
28/42 + 20/36 is 11/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
28/42 = 28 × 6/42 × 6 = 168/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
20/36 = 20 × 7/36 × 7 = 140/252 - Add the two like fractions:
168/252 + 140/252 = 168 + 140/252 = 308/252 - 308/252 simplified gives 11/9
- So, 28/42 + 20/36 = 11/9
In mixed form: 12/9
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