Add 3/80 and 30/7, Solve 3/80 + 4 2/7 as a fraction

Add 3/80 and 30/7

1^st number: 3/80, 2^nd number: 4 2/7

3/80 + 30/7 is 2421/560.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 7 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 80 × 7 = 560,
3/80 = 3 × 7/80 × 7 = 21/560
Likewise, for the 2nd fraction, since 7 × 80 = 560,
30/7 = 30 × 80/7 × 80 = 2400/560
Add the two like fractions:
21/560 + 2400/560 = 21 + 2400/560 = 2421/560
So, 3/80 + 30/7 = 2421/560
In mixed form: 4181/560

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