Add 25/84 and 21/20
1st number: 25/84, 2nd number: 1 1/20
25/84 + 21/20 is 283/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 20 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
25/84 = 25 × 5/84 × 5 = 125/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
21/20 = 21 × 21/20 × 21 = 441/420 - Add the two like fractions:
125/420 + 441/420 = 125 + 441/420 = 566/420 - 566/420 simplified gives 283/210
- So, 25/84 + 21/20 = 283/210
In mixed form: 173/210
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