Add 28/36 and 9/20
28/36 + 9/20 is 221/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
28/36 = 28 × 5/36 × 5 = 140/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Add the two like fractions:
140/180 + 81/180 = 140 + 81/180 = 221/180 - So, 28/36 + 9/20 = 221/180
In mixed form: 141/180
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