Add 21/25 and 28/84
21/25 + 28/84 is 88/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 84 is 2100
Next, find the equivalent fraction of both fractional numbers with denominator 2100 - For the 1st fraction, since 25 × 84 = 2100,
21/25 = 21 × 84/25 × 84 = 1764/2100 - Likewise, for the 2nd fraction, since 84 × 25 = 2100,
28/84 = 28 × 25/84 × 25 = 700/2100 - Add the two like fractions:
1764/2100 + 700/2100 = 1764 + 700/2100 = 2464/2100 - 2464/2100 simplified gives 88/75
- So, 21/25 + 28/84 = 88/75
In mixed form: 113/75
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