Add 9/20 and 36/45
9/20 + 36/45 is 5/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
9/20 = 9 × 9/20 × 9 = 81/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
36/45 = 36 × 4/45 × 4 = 144/180 - Add the two like fractions:
81/180 + 144/180 = 81 + 144/180 = 225/180 - 225/180 simplified gives 5/4
- So, 9/20 + 36/45 = 5/4
In mixed form: 11/4
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