Add 21/45 and 20/36
21/45 + 20/36 is 46/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
21/45 = 21 × 4/45 × 4 = 84/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
20/36 = 20 × 5/36 × 5 = 100/180 - Add the two like fractions:
84/180 + 100/180 = 84 + 100/180 = 184/180 - 184/180 simplified gives 46/45
- So, 21/45 + 20/36 = 46/45
In mixed form: 11/45
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