Add 70/30 and 75/20
1st number: 2 10/30, 2nd number: 3 15/20
70/30 + 75/20 is 73/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
70/30 = 70 × 2/30 × 2 = 140/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
75/20 = 75 × 3/20 × 3 = 225/60 - Add the two like fractions:
140/60 + 225/60 = 140 + 225/60 = 365/60 - 365/60 simplified gives 73/12
- So, 70/30 + 75/20 = 73/12
In mixed form: 61/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/60+75/20 70/30+75/40 70/90+75/20 70/30+75/60