Add 45/80 and 28/35
45/80 + 28/35 is 109/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 35 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Likewise, for the 2nd fraction, since 35 × 16 = 560,
28/35 = 28 × 16/35 × 16 = 448/560 - Add the two like fractions:
315/560 + 448/560 = 315 + 448/560 = 763/560 - 763/560 simplified gives 109/80
- So, 45/80 + 28/35 = 109/80
In mixed form: 129/80
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