Add 12/70 and 18/8
1st number: 12/70, 2nd number: 2 2/8
12/70 + 18/8 is 339/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 8 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
18/8 = 18 × 35/8 × 35 = 630/280 - Add the two like fractions:
48/280 + 630/280 = 48 + 630/280 = 678/280 - 678/280 simplified gives 339/140
- So, 12/70 + 18/8 = 339/140
In mixed form: 259/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/70+18/8 12/70+36/8 12/70+18/16 36/70+18/8 12/70+54/8 12/70+18/24 60/70+18/8 12/70+90/8 12/70+18/40 84/70+18/8 12/70+18/56