Add 84/56 and 81/60
1st number: 1 28/56, 2nd number: 1 21/60
84/56 + 81/60 is 57/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 60 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
84/56 = 84 × 15/56 × 15 = 1260/840 - Likewise, for the 2nd fraction, since 60 × 14 = 840,
81/60 = 81 × 14/60 × 14 = 1134/840 - Add the two like fractions:
1260/840 + 1134/840 = 1260 + 1134/840 = 2394/840 - 2394/840 simplified gives 57/20
- So, 84/56 + 81/60 = 57/20
In mixed form: 217/20
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