Add 84/56 and 21/7
1st number: 1 28/56, 2nd number: 3 0/7
84/56 + 21/7 is 9/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 7 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 56 × 1 = 56,
84/56 = 84 × 1/56 × 1 = 84/56 - Likewise, for the 2nd fraction, since 7 × 8 = 56,
21/7 = 21 × 8/7 × 8 = 168/56 - Add the two like fractions:
84/56 + 168/56 = 84 + 168/56 = 252/56 - 252/56 simplified gives 9/2
- So, 84/56 + 21/7 = 9/2
In mixed form: 41/2
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