Add 84/56 and 21/5
1st number: 1 28/56, 2nd number: 4 1/5
84/56 + 21/5 is 57/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 5 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 5 × 56 = 280,
21/5 = 21 × 56/5 × 56 = 1176/280 - Add the two like fractions:
420/280 + 1176/280 = 420 + 1176/280 = 1596/280 - 1596/280 simplified gives 57/10
- So, 84/56 + 21/5 = 57/10
In mixed form: 57/10
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