Add 9/20 and 25/42, Solve 9/20 + 25/42 as a fraction

Add 9/20 and 25/42

9/20 + 25/42 is 439/420.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 42 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
9/20 = 9 × 21/20 × 21 = 189/420
Likewise, for the 2nd fraction, since 42 × 10 = 420,
25/42 = 25 × 10/42 × 10 = 250/420
Add the two like fractions:
189/420 + 250/420 = 189 + 250/420 = 439/420
So, 9/20 + 25/42 = 439/420
In mixed form: 119/420

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