Add 84/56 and 12/20
1st number: 1 28/56, 2nd number: 12/20
84/56 + 12/20 is 21/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 20 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
84/56 = 84 × 5/56 × 5 = 420/280 - Likewise, for the 2nd fraction, since 20 × 14 = 280,
12/20 = 12 × 14/20 × 14 = 168/280 - Add the two like fractions:
420/280 + 168/280 = 420 + 168/280 = 588/280 - 588/280 simplified gives 21/10
- So, 84/56 + 12/20 = 21/10
In mixed form: 21/10
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