Add 70/80 and 27/28
70/80 + 27/28 is 103/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 28 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Likewise, for the 2nd fraction, since 28 × 20 = 560,
27/28 = 27 × 20/28 × 20 = 540/560 - Add the two like fractions:
490/560 + 540/560 = 490 + 540/560 = 1030/560 - 1030/560 simplified gives 103/56
- So, 70/80 + 27/28 = 103/56
In mixed form: 147/56
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