Add 18/70 and 18/8
1st number: 18/70, 2nd number: 2 2/8
18/70 + 18/8 is 351/140.
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,
18/70 = 18 × 4/70 × 4 = 72/280 - Likewise, for the 2nd fraction, since 8 × 35 = 280,
18/8 = 18 × 35/8 × 35 = 630/280 - Add the two like fractions:
72/280 + 630/280 = 72 + 630/280 = 702/280 - 702/280 simplified gives 351/140
- So, 18/70 + 18/8 = 351/140
In mixed form: 271/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+18/8 18/70+36/8 18/70+18/16 54/70+18/8 18/70+54/8 18/70+18/24 90/70+18/8 18/70+90/8 18/70+18/40 18/70+18/56