Add 20/30 and 3/70
20/30 + 3/70 is 149/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
3/70 = 3 × 3/70 × 3 = 9/210 - Add the two like fractions:
140/210 + 9/210 = 140 + 9/210 = 149/210 - So, 20/30 + 3/70 = 149/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+3/70 20/30+6/70 20/60+3/70 60/30+3/70 20/30+9/70 20/90+3/70 20/30+15/70 20/30+21/70