Add 70/98 and 4/90
70/98 + 4/90 is 239/315.
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,
70/98 = 70 × 45/98 × 45 = 3150/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
4/90 = 4 × 49/90 × 49 = 196/4410 - Add the two like fractions:
3150/4410 + 196/4410 = 3150 + 196/4410 = 3346/4410 - 3346/4410 simplified gives 239/315
- So, 70/98 + 4/90 = 239/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/98+8/90 70/98+12/90 70/98+20/90 70/98+28/90