Add 12/7 and 84/72
1st number: 1 5/7, 2nd number: 1 12/72
12/7 + 84/72 is 121/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
12/7 = 12 × 72/7 × 72 = 864/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
84/72 = 84 × 7/72 × 7 = 588/504 - Add the two like fractions:
864/504 + 588/504 = 864 + 588/504 = 1452/504 - 1452/504 simplified gives 121/42
- So, 12/7 + 84/72 = 121/42
In mixed form: 237/42
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