Add 80/35 and 84/72, Solve 2 10/35 + 1 12/72 as a fraction

Add 80/35 and 84/72

1^st number: 2 10/35, 2^nd number: 1 12/72

80/35 + 84/72 is 145/42.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 72 is 2520

Next, find the equivalent fraction of both fractional numbers with denominator 2520
For the 1st fraction, since 35 × 72 = 2520,
80/35 = 80 × 72/35 × 72 = 5760/2520
Likewise, for the 2nd fraction, since 72 × 35 = 2520,
84/72 = 84 × 35/72 × 35 = 2940/2520
Add the two like fractions:
5760/2520 + 2940/2520 = 5760 + 2940/2520 = 8700/2520
8700/2520 simplified gives 145/42
So, 80/35 + 84/72 = 145/42
In mixed form: 319/42

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