Add 3/70 and 80/60, Solve 3/70 + 1 20/60 as a fraction

Add 3/70 and 80/60

1^st number: 3/70, 2^nd number: 1 20/60

3/70 + 80/60 is 289/210.

Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 70 × 6 = 420,
3/70 = 3 × 6/70 × 6 = 18/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420
Add the two like fractions:
18/420 + 560/420 = 18 + 560/420 = 578/420
578/420 simplified gives 289/210
So, 3/70 + 80/60 = 289/210
In mixed form: 179/210

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