Add 50/42 and 80/60, Solve 1 8/42 + 1 20/60 as a fraction

Add 50/42 and 80/60

1^st number: 1 8/42, 2^nd number: 1 20/60

50/42 + 80/60 is 53/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 42 × 10 = 420,
50/42 = 50 × 10/42 × 10 = 500/420
Likewise, for the 2nd fraction, since 60 × 7 = 420,
80/60 = 80 × 7/60 × 7 = 560/420
Add the two like fractions:
500/420 + 560/420 = 500 + 560/420 = 1060/420
1060/420 simplified gives 53/21
So, 50/42 + 80/60 = 53/21
In mixed form: 211/21

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