Add 70/28 and 81/80
1st number: 2 14/28, 2nd number: 1 1/80
70/28 + 81/80 is 281/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 28 × 20 = 560,
70/28 = 70 × 20/28 × 20 = 1400/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
81/80 = 81 × 7/80 × 7 = 567/560 - Add the two like fractions:
1400/560 + 567/560 = 1400 + 567/560 = 1967/560 - 1967/560 simplified gives 281/80
- So, 70/28 + 81/80 = 281/80
In mixed form: 341/80
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