Add 63/98 and 70/40
1st number: 63/98, 2nd number: 1 30/40
63/98 + 70/40 is 67/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
63/98 = 63 × 20/98 × 20 = 1260/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
70/40 = 70 × 49/40 × 49 = 3430/1960 - Add the two like fractions:
1260/1960 + 3430/1960 = 1260 + 3430/1960 = 4690/1960 - 4690/1960 simplified gives 67/28
- So, 63/98 + 70/40 = 67/28
In mixed form: 211/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/98+70/80