Add 70/30 and 30/45
1st number: 2 10/30, 2nd number: 30/45
70/30 + 30/45 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 45 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
70/30 = 70 × 3/30 × 3 = 210/90 - Likewise, for the 2nd fraction, since 45 × 2 = 90,
30/45 = 30 × 2/45 × 2 = 60/90 - Add the two like fractions:
210/90 + 60/90 = 210 + 60/90 = 270/90 - 270/90 simplified gives 3/1
- So, 70/30 + 30/45 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/30+60/45 70/60+30/45 70/30+30/90 70/30+90/45 70/90+30/45