Add 30/75 and 3/70
30/75 + 3/70 is 31/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 70 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 75 × 14 = 1050,
30/75 = 30 × 14/75 × 14 = 420/1050 - Likewise, for the 2nd fraction, since 70 × 15 = 1050,
3/70 = 3 × 15/70 × 15 = 45/1050 - Add the two like fractions:
420/1050 + 45/1050 = 420 + 45/1050 = 465/1050 - 465/1050 simplified gives 31/70
- So, 30/75 + 3/70 = 31/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/75+3/70 30/75+6/70 90/75+3/70 30/75+9/70 30/75+15/70 30/75+21/70