Add 21/36 and 72/9
1st number: 21/36, 2nd number: 8 0/9
21/36 + 72/9 is 103/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 9 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 9 × 4 = 36,
72/9 = 72 × 4/9 × 4 = 288/36 - Add the two like fractions:
21/36 + 288/36 = 21 + 288/36 = 309/36 - 309/36 simplified gives 103/12
- So, 21/36 + 72/9 = 103/12
In mixed form: 87/12
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