Add 72/6 and 21/12
1st number: 12 0/6, 2nd number: 1 9/12
72/6 + 21/12 is 55/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 6 × 2 = 12,
72/6 = 72 × 2/6 × 2 = 144/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Add the two like fractions:
144/12 + 21/12 = 144 + 21/12 = 165/12 - 165/12 simplified gives 55/4
- So, 72/6 + 21/12 = 55/4
In mixed form: 133/4
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