Add 25/60 and 81/84
25/60 + 81/84 is 29/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
25/60 = 25 × 7/60 × 7 = 175/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
81/84 = 81 × 5/84 × 5 = 405/420 - Add the two like fractions:
175/420 + 405/420 = 175 + 405/420 = 580/420 - 580/420 simplified gives 29/21
- So, 25/60 + 81/84 = 29/21
In mixed form: 18/21
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