Add 10/98 and 72/90
10/98 + 72/90 is 221/245.
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,
10/98 = 10 × 45/98 × 45 = 450/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
72/90 = 72 × 49/90 × 49 = 3528/4410 - Add the two like fractions:
450/4410 + 3528/4410 = 450 + 3528/4410 = 3978/4410 - 3978/4410 simplified gives 221/245
- So, 10/98 + 72/90 = 221/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/98+72/90 30/98+72/90 50/98+72/90 70/98+72/90