Add 12/70 and 75/30
1st number: 12/70, 2nd number: 2 15/30
12/70 + 75/30 is 187/70.
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,
12/70 = 12 × 3/70 × 3 = 36/210 - Likewise, for the 2nd fraction, since 30 × 7 = 210,
75/30 = 75 × 7/30 × 7 = 525/210 - Add the two like fractions:
36/210 + 525/210 = 36 + 525/210 = 561/210 - 561/210 simplified gives 187/70
- So, 12/70 + 75/30 = 187/70
In mixed form: 247/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+75/30 12/70+75/60 36/70+75/30 12/70+75/90 60/70+75/30 84/70+75/30