Add 15/25 and 21/98
15/25 + 21/98 is 57/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 98 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 25 × 98 = 2450,
15/25 = 15 × 98/25 × 98 = 1470/2450 - Likewise, for the 2nd fraction, since 98 × 25 = 2450,
21/98 = 21 × 25/98 × 25 = 525/2450 - Add the two like fractions:
1470/2450 + 525/2450 = 1470 + 525/2450 = 1995/2450 - 1995/2450 simplified gives 57/70
- So, 15/25 + 21/98 = 57/70
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