Add 40/28 and 70/80
1st number: 1 12/28, 2nd number: 70/80
40/28 + 70/80 is 129/56.
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,
40/28 = 40 × 20/28 × 20 = 800/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
70/80 = 70 × 7/80 × 7 = 490/560 - Add the two like fractions:
800/560 + 490/560 = 800 + 490/560 = 1290/560 - 1290/560 simplified gives 129/56
- So, 40/28 + 70/80 = 129/56
In mixed form: 217/56
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