Add 15/28 and 45/80, Solve 15/28 + 45/80 as a fraction

Add 15/28 and 45/80

15/28 + 45/80 is 123/112.

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,
15/28 = 15 × 20/28 × 20 = 300/560
Likewise, for the 2nd fraction, since 80 × 7 = 560,
45/80 = 45 × 7/80 × 7 = 315/560
Add the two like fractions:
300/560 + 315/560 = 300 + 315/560 = 615/560
615/560 simplified gives 123/112
So, 15/28 + 45/80 = 123/112
In mixed form: 111/112

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