Add 72/42 and 36/12
1st number: 1 30/42, 2nd number: 3 0/12
72/42 + 36/12 is 33/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
72/42 = 72 × 2/42 × 2 = 144/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
36/12 = 36 × 7/12 × 7 = 252/84 - Add the two like fractions:
144/84 + 252/84 = 144 + 252/84 = 396/84 - 396/84 simplified gives 33/7
- So, 72/42 + 36/12 = 33/7
In mixed form: 45/7
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