Add 40/70 and 6/20
40/70 + 6/20 is 61/70.
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,
40/70 = 40 × 2/70 × 2 = 80/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Add the two like fractions:
80/140 + 42/140 = 80 + 42/140 = 122/140 - 122/140 simplified gives 61/70
- So, 40/70 + 6/20 = 61/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/70+6/20 40/70+12/20 40/70+6/40 40/70+18/20 40/70+6/60 40/70+30/20 40/70+42/20