Add 50/42 and 70/20, Solve 1 8/42 + 3 10/20 as a fraction

Add 50/42 and 70/20

1^st number: 1 8/42, 2^nd number: 3 10/20

50/42 + 70/20 is 197/42.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 20 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 20 × 21 = 420,
70/20 = 70 × 21/20 × 21 = 1470/420
Add the two like fractions:
500/420 + 1470/420 = 500 + 1470/420 = 1970/420
1970/420 simplified gives 197/42
So, 50/42 + 70/20 = 197/42
In mixed form: 429/42

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