Add 72/70 and 75/30
1st number: 1 2/70, 2nd number: 2 15/30
72/70 + 75/30 is 247/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 30 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
72/70 = 72 × 3/70 × 3 = 216/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Add the two like fractions:
216/210 + 525/210 = 216 + 525/210 = 741/210 - 741/210 simplified gives 247/70
- So, 72/70 + 75/30 = 247/70
In mixed form: 337/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+75/60 72/70+75/90