Add 21/36 and 40/12
1st number: 21/36, 2nd number: 3 4/12
21/36 + 40/12 is 47/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
40/12 = 40 × 3/12 × 3 = 120/36 - Add the two like fractions:
21/36 + 120/36 = 21 + 120/36 = 141/36 - 141/36 simplified gives 47/12
- So, 21/36 + 40/12 = 47/12
In mixed form: 311/12
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