Add 72/30 and 28/84
1st number: 2 12/30, 2nd number: 28/84
72/30 + 28/84 is 41/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 30 × 14 = 420,
72/30 = 72 × 14/30 × 14 = 1008/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
28/84 = 28 × 5/84 × 5 = 140/420 - Add the two like fractions:
1008/420 + 140/420 = 1008 + 140/420 = 1148/420 - 1148/420 simplified gives 41/15
- So, 72/30 + 28/84 = 41/15
In mixed form: 211/15
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