Add 30/80 and 50/42, Solve 30/80 + 1 8/42 as a fraction

Add 30/80 and 50/42

1^st number: 30/80, 2^nd number: 1 8/42

30/80 + 50/42 is 263/168.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 42 is 1680

Next, find the equivalent fraction of both fractional numbers with denominator 1680
For the 1st fraction, since 80 × 21 = 1680,
30/80 = 30 × 21/80 × 21 = 630/1680
Likewise, for the 2nd fraction, since 42 × 40 = 1680,
50/42 = 50 × 40/42 × 40 = 2000/1680
Add the two like fractions:
630/1680 + 2000/1680 = 630 + 2000/1680 = 2630/1680
2630/1680 simplified gives 263/168
So, 30/80 + 50/42 = 263/168
In mixed form: 195/168

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