Add 90/98 and 15/70
90/98 + 15/70 is 111/98.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
90/98 = 90 × 5/98 × 5 = 450/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
15/70 = 15 × 7/70 × 7 = 105/490 - Add the two like fractions:
450/490 + 105/490 = 450 + 105/490 = 555/490 - 555/490 simplified gives 111/98
- So, 90/98 + 15/70 = 111/98
In mixed form: 113/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98+30/70 90/98+45/70 90/98+75/70