Add 9/49 and 20/70
9/49 + 20/70 is 23/49.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 70 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 49 × 10 = 490,
9/49 = 9 × 10/49 × 10 = 90/490 - Likewise, for the 2nd fraction, since 70 × 7 = 490,
20/70 = 20 × 7/70 × 7 = 140/490 - Add the two like fractions:
90/490 + 140/490 = 90 + 140/490 = 230/490 - 230/490 simplified gives 23/49
- So, 9/49 + 20/70 = 23/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/49+20/70 9/49+40/70 9/98+20/70 27/49+20/70 9/49+60/70 45/49+20/70 63/49+20/70