Add 7/8 and 18/70
7/8 + 18/70 is 317/280.
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,
7/8 = 7 × 35/8 × 35 = 245/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
18/70 = 18 × 4/70 × 4 = 72/280 - Add the two like fractions:
245/280 + 72/280 = 245 + 72/280 = 317/280 - So, 7/8 + 18/70 = 317/280
In mixed form: 137/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/8+18/70 7/8+36/70 7/16+18/70 21/8+18/70 7/8+54/70 7/24+18/70 35/8+18/70 7/8+90/70 7/40+18/70 49/8+18/70 7/56+18/70