Add 21/98 and 20/25
21/98 + 20/25 is 71/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 25 is 2450
Next, find the equivalent fraction of both fractional numbers with denominator 2450 - For the 1st fraction, since 98 × 25 = 2450,
21/98 = 21 × 25/98 × 25 = 525/2450 - Likewise, for the 2nd fraction, since 25 × 98 = 2450,
20/25 = 20 × 98/25 × 98 = 1960/2450 - Add the two like fractions:
525/2450 + 1960/2450 = 525 + 1960/2450 = 2485/2450 - 2485/2450 simplified gives 71/70
- So, 21/98 + 20/25 = 71/70
In mixed form: 11/70
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