Add 80/24 and 21/70, Solve 3 8/24 + 21/70 as a fraction

Add 80/24 and 21/70

1^st number: 3 8/24, 2^nd number: 21/70

80/24 + 21/70 is 109/30.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 24 × 35 = 840,
80/24 = 80 × 35/24 × 35 = 2800/840
Likewise, for the 2nd fraction, since 70 × 12 = 840,
21/70 = 21 × 12/70 × 12 = 252/840
Add the two like fractions:
2800/840 + 252/840 = 2800 + 252/840 = 3052/840
3052/840 simplified gives 109/30
So, 80/24 + 21/70 = 109/30
In mixed form: 319/30

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