Add 63/98 and 20/30
63/98 + 20/30 is 55/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 98 × 15 = 1470,
63/98 = 63 × 15/98 × 15 = 945/1470 - Likewise, for the 2nd fraction, since 30 × 49 = 1470,
20/30 = 20 × 49/30 × 49 = 980/1470 - Add the two like fractions:
945/1470 + 980/1470 = 945 + 980/1470 = 1925/1470 - 1925/1470 simplified gives 55/42
- So, 63/98 + 20/30 = 55/42
In mixed form: 113/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/98+40/30 63/98+20/60 63/98+60/30 63/98+20/90