Add 28/8 and 12/70
1st number: 3 4/8, 2nd number: 12/70
28/8 + 12/70 is 257/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 8 × 35 = 280,
28/8 = 28 × 35/8 × 35 = 980/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
12/70 = 12 × 4/70 × 4 = 48/280 - Add the two like fractions:
980/280 + 48/280 = 980 + 48/280 = 1028/280 - 1028/280 simplified gives 257/70
- So, 28/8 + 12/70 = 257/70
In mixed form: 347/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8+12/70 28/8+24/70 28/16+12/70 84/8+12/70 28/8+36/70 28/24+12/70 28/8+60/70 28/40+12/70 28/8+84/70 28/56+12/70