Add 28/56 and 70/80
28/56 + 70/80 is 11/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 56 × 10 = 560,
28/56 = 28 × 10/56 × 10 = 280/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Add the two like fractions:
280/560 + 490/560 = 280 + 490/560 = 770/560 - 770/560 simplified gives 11/8
- So, 28/56 + 70/80 = 11/8
In mixed form: 13/8
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