Add 1/7 and 3/30
1/7 + 3/30 is 17/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 7 × 30 = 210,
1/7 = 1 × 30/7 × 30 = 30/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
3/30 = 3 × 7/30 × 7 = 21/210 - Add the two like fractions:
30/210 + 21/210 = 30 + 21/210 = 51/210 - 51/210 simplified gives 17/70
- So, 1/7 + 3/30 = 17/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/7+3/30 1/7+6/30 1/14+3/30 1/7+3/60 3/7+3/30 1/7+9/30 1/21+3/30 1/7+3/90 5/7+3/30 1/7+15/30 1/35+3/30 1/7+21/30 1/49+3/30