Add 84/56 and 45/70
1st number: 1 28/56, 2nd number: 45/70
84/56 + 45/70 is 15/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 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 70 × 4 = 280,
45/70 = 45 × 4/70 × 4 = 180/280 - Add the two like fractions:
420/280 + 180/280 = 420 + 180/280 = 600/280 - 600/280 simplified gives 15/7
- So, 84/56 + 45/70 = 15/7
In mixed form: 21/7
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