Add 45/36 and 21/20
1st number: 1 9/36, 2nd number: 1 1/20
45/36 + 21/20 is 23/10.
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,
45/36 = 45 × 5/36 × 5 = 225/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
21/20 = 21 × 9/20 × 9 = 189/180 - Add the two like fractions:
225/180 + 189/180 = 225 + 189/180 = 414/180 - 414/180 simplified gives 23/10
- So, 45/36 + 21/20 = 23/10
In mixed form: 23/10
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