Add 72/70 and 84/30
1st number: 1 2/70, 2nd number: 2 24/30
72/70 + 84/30 is 134/35.
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,
84/30 = 84 × 7/30 × 7 = 588/210 - Add the two like fractions:
216/210 + 588/210 = 216 + 588/210 = 804/210 - 804/210 simplified gives 134/35
- So, 72/70 + 84/30 = 134/35
In mixed form: 329/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/70+84/60 72/70+84/90