Add 7/70 and 75/30
1st number: 7/70, 2nd number: 2 15/30
7/70 + 75/30 is 13/5.
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,
7/70 = 7 × 3/70 × 3 = 21/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Add the two like fractions:
21/210 + 525/210 = 21 + 525/210 = 546/210 - 546/210 simplified gives 13/5
- So, 7/70 + 75/30 = 13/5
In mixed form: 23/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/70+75/30 7/70+75/60 21/70+75/30 7/70+75/90 35/70+75/30 49/70+75/30