Add 6/70 and 42/20
1st number: 6/70, 2nd number: 2 2/20
6/70 + 42/20 is 153/70.
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,
6/70 = 6 × 2/70 × 2 = 12/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Add the two like fractions:
12/140 + 294/140 = 12 + 294/140 = 306/140 - 306/140 simplified gives 153/70
- So, 6/70 + 42/20 = 153/70
In mixed form: 213/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/70+42/20 6/70+84/20 6/70+42/40 18/70+42/20 6/70+42/60 30/70+42/20 42/70+42/20