Add 80/75 and 21/12, Solve 1 5/75 + 1 9/12 as a fraction

Add 80/75 and 21/12

1^st number: 1 5/75, 2^nd number: 1 9/12

80/75 + 21/12 is 169/60.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 75 × 4 = 300,
80/75 = 80 × 4/75 × 4 = 320/300
Likewise, for the 2nd fraction, since 12 × 25 = 300,
21/12 = 21 × 25/12 × 25 = 525/300
Add the two like fractions:
320/300 + 525/300 = 320 + 525/300 = 845/300
845/300 simplified gives 169/60
So, 80/75 + 21/12 = 169/60
In mixed form: 249/60

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