Add 21/25 and 28/7
1st number: 21/25, 2nd number: 4 0/7
21/25 + 28/7 is 121/25.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 7 is 175
Next, find the equivalent fraction of both fractional numbers with denominator 175 - For the 1st fraction, since 25 × 7 = 175,
21/25 = 21 × 7/25 × 7 = 147/175 - Likewise, for the 2nd fraction, since 7 × 25 = 175,
28/7 = 28 × 25/7 × 25 = 700/175 - Add the two like fractions:
147/175 + 700/175 = 147 + 700/175 = 847/175 - 847/175 simplified gives 121/25
- So, 21/25 + 28/7 = 121/25
In mixed form: 421/25
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