Add 80/15 and 9/28, Solve 5 5/15 + 9/28 as a fraction

Add 80/15 and 9/28

1^st number: 5 5/15, 2^nd number: 9/28

80/15 + 9/28 is 475/84.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 15 × 28 = 420,
80/15 = 80 × 28/15 × 28 = 2240/420
Likewise, for the 2nd fraction, since 28 × 15 = 420,
9/28 = 9 × 15/28 × 15 = 135/420
Add the two like fractions:
2240/420 + 135/420 = 2240 + 135/420 = 2375/420
2375/420 simplified gives 475/84
So, 80/15 + 9/28 = 475/84
In mixed form: 555/84

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