Add 9/20 and 15/70
9/20 + 15/70 is 93/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
9/20 = 9 × 7/20 × 7 = 63/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140 - Add the two like fractions:
63/140 + 30/140 = 63 + 30/140 = 93/140 - So, 9/20 + 15/70 = 93/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+15/70 9/20+30/70 9/40+15/70 27/20+15/70 9/20+45/70 9/60+15/70 45/20+15/70 9/20+75/70 63/20+15/70