Add 21/36 and 36/20
1st number: 21/36, 2nd number: 1 16/20
21/36 + 36/20 is 143/60.
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,
21/36 = 21 × 5/36 × 5 = 105/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
36/20 = 36 × 9/20 × 9 = 324/180 - Add the two like fractions:
105/180 + 324/180 = 105 + 324/180 = 429/180 - 429/180 simplified gives 143/60
- So, 21/36 + 36/20 = 143/60
In mixed form: 223/60
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