Add 80/25 and 70/42, Solve 3 5/25 + 1 28/42 as a fraction

Add 80/25 and 70/42

1^st number: 3 5/25, 2^nd number: 1 28/42

80/25 + 70/42 is 73/15.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050

Next, find the equivalent fraction of both fractional numbers with denominator 1050
For the 1st fraction, since 25 × 42 = 1050,
80/25 = 80 × 42/25 × 42 = 3360/1050
Likewise, for the 2nd fraction, since 42 × 25 = 1050,
70/42 = 70 × 25/42 × 25 = 1750/1050
Add the two like fractions:
3360/1050 + 1750/1050 = 3360 + 1750/1050 = 5110/1050
5110/1050 simplified gives 73/15
So, 80/25 + 70/42 = 73/15
In mixed form: 413/15

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