Add 81/98 and 5/70
81/98 + 5/70 is 44/49.
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,
81/98 = 81 × 5/98 × 5 = 405/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
5/70 = 5 × 7/70 × 7 = 35/490 - Add the two like fractions:
405/490 + 35/490 = 405 + 35/490 = 440/490 - 440/490 simplified gives 44/49
- So, 81/98 + 5/70 = 44/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/98+10/70 81/98+15/70 81/98+25/70 81/98+35/70