Add 12/84 and 72/36
1st number: 12/84, 2nd number: 2 0/36
12/84 + 72/36 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
12/84 = 12 × 3/84 × 3 = 36/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
72/36 = 72 × 7/36 × 7 = 504/252 - Add the two like fractions:
36/252 + 504/252 = 36 + 504/252 = 540/252 - 540/252 simplified gives 15/7
- So, 12/84 + 72/36 = 15/7
In mixed form: 21/7
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