Add 25/84 and 7/20
25/84 + 7/20 is 68/105.
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,
7/20 = 7 × 21/20 × 21 = 147/420 - Add the two like fractions:
125/420 + 147/420 = 125 + 147/420 = 272/420 - 272/420 simplified gives 68/105
- So, 25/84 + 7/20 = 68/105
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