Add 18/28 and 45/80
18/28 + 45/80 is 135/112.
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,
18/28 = 18 × 20/28 × 20 = 360/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560 - Add the two like fractions:
360/560 + 315/560 = 360 + 315/560 = 675/560 - 675/560 simplified gives 135/112
- So, 18/28 + 45/80 = 135/112
In mixed form: 123/112
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