Add 25/20 and 3/84, Solve 1 5/20 + 3/84 as a fraction

Add 25/20 and 3/84

1^st number: 1 5/20, 2^nd number: 3/84

25/20 + 3/84 is 9/7.

Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 20 × 21 = 420,
25/20 = 25 × 21/20 × 21 = 525/420
Likewise, for the 2nd fraction, since 84 × 5 = 420,
3/84 = 3 × 5/84 × 5 = 15/420
Add the two like fractions:
525/420 + 15/420 = 525 + 15/420 = 540/420
540/420 simplified gives 9/7
So, 25/20 + 3/84 = 9/7
In mixed form: 12/7

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