Add 84/56 and 81/30
1st number: 1 28/56, 2nd number: 2 21/30
84/56 + 81/30 is 21/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 30 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 30 × 28 = 840,
81/30 = 81 × 28/30 × 28 = 2268/840 - Add the two like fractions:
1260/840 + 2268/840 = 1260 + 2268/840 = 3528/840 - 3528/840 simplified gives 21/5
- So, 84/56 + 81/30 = 21/5
In mixed form: 41/5
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