Add 5/84 and 81/20
1st number: 5/84, 2nd number: 4 1/20
5/84 + 81/20 is 863/210.
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,
5/84 = 5 × 5/84 × 5 = 25/420 - Likewise, for the 2nd fraction, since 20 × 21 = 420,
81/20 = 81 × 21/20 × 21 = 1701/420 - Add the two like fractions:
25/420 + 1701/420 = 25 + 1701/420 = 1726/420 - 1726/420 simplified gives 863/210
- So, 5/84 + 81/20 = 863/210
In mixed form: 423/210
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