Add 28/56 and 45/70
28/56 + 45/70 is 8/7.
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,
28/56 = 28 × 5/56 × 5 = 140/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
45/70 = 45 × 4/70 × 4 = 180/280 - Add the two like fractions:
140/280 + 180/280 = 140 + 180/280 = 320/280 - 320/280 simplified gives 8/7
- So, 28/56 + 45/70 = 8/7
In mixed form: 11/7
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