Add 7/4 and 28/80, Solve 1 3/4 + 28/80 as a fraction

Add 7/4 and 28/80

1^st number: 1 3/4, 2^nd number: 28/80

7/4 + 28/80 is 21/10.

Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80

Next, find the equivalent fraction of both fractional numbers with denominator 80
For the 1st fraction, since 4 × 20 = 80,
7/4 = 7 × 20/4 × 20 = 140/80
Likewise, for the 2nd fraction, since 80 × 1 = 80,
28/80 = 28 × 1/80 × 1 = 28/80
Add the two like fractions:
140/80 + 28/80 = 140 + 28/80 = 168/80
168/80 simplified gives 21/10
So, 7/4 + 28/80 = 21/10
In mixed form: 21/10

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