Add 30/60 and 10/70
30/60 + 10/70 is 9/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
30/60 = 30 × 7/60 × 7 = 210/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
10/70 = 10 × 6/70 × 6 = 60/420 - Add the two like fractions:
210/420 + 60/420 = 210 + 60/420 = 270/420 - 270/420 simplified gives 9/14
- So, 30/60 + 10/70 = 9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/60+20/70 90/60+10/70 30/60+30/70 30/60+50/70