Add 72/15 and 12/84
1st number: 4 12/15, 2nd number: 12/84
72/15 + 12/84 is 173/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
72/15 = 72 × 28/15 × 28 = 2016/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
12/84 = 12 × 5/84 × 5 = 60/420 - Add the two like fractions:
2016/420 + 60/420 = 2016 + 60/420 = 2076/420 - 2076/420 simplified gives 173/35
- So, 72/15 + 12/84 = 173/35
In mixed form: 433/35
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