Add 25/30 and 21/98
25/30 + 21/98 is 22/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
25/30 = 25 × 49/30 × 49 = 1225/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
21/98 = 21 × 15/98 × 15 = 315/1470 - Add the two like fractions:
1225/1470 + 315/1470 = 1225 + 315/1470 = 1540/1470 - 1540/1470 simplified gives 22/21
- So, 25/30 + 21/98 = 22/21
In mixed form: 11/21
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