Add 3/70 and 18/20
3/70 + 18/20 is 33/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
3/70 = 3 × 2/70 × 2 = 6/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
18/20 = 18 × 7/20 × 7 = 126/140 - Add the two like fractions:
6/140 + 126/140 = 6 + 126/140 = 132/140 - 132/140 simplified gives 33/35
- So, 3/70 + 18/20 = 33/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/70+18/20 3/70+36/20 3/70+18/40 9/70+18/20 3/70+54/20 3/70+18/60 15/70+18/20 3/70+90/20 21/70+18/20