Add 28/98 and 70/90
28/98 + 70/90 is 67/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
28/98 = 28 × 45/98 × 45 = 1260/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
70/90 = 70 × 49/90 × 49 = 3430/4410 - Add the two like fractions:
1260/4410 + 3430/4410 = 1260 + 3430/4410 = 4690/4410 - 4690/4410 simplified gives 67/63
- So, 28/98 + 70/90 = 67/63
In mixed form: 14/63
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