Add 4/20 and 7/70
4/20 + 7/70 is 3/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
4/20 = 4 × 7/20 × 7 = 28/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
7/70 = 7 × 2/70 × 2 = 14/140 - Add the two like fractions:
28/140 + 14/140 = 28 + 14/140 = 42/140 - 42/140 simplified gives 3/10
- So, 4/20 + 7/70 = 3/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/20+7/70 4/20+14/70 4/40+7/70 12/20+7/70 4/20+21/70 4/60+7/70 4/20+35/70 28/20+7/70 4/20+49/70