Add 84/20 and 7/70
1st number: 4 4/20, 2nd number: 7/70
84/20 + 7/70 is 43/10.
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,
84/20 = 84 × 7/20 × 7 = 588/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
7/70 = 7 × 2/70 × 2 = 14/140 - Add the two like fractions:
588/140 + 14/140 = 588 + 14/140 = 602/140 - 602/140 simplified gives 43/10
- So, 84/20 + 7/70 = 43/10
In mixed form: 43/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/20+14/70 84/40+7/70 84/20+21/70 84/60+7/70 84/20+35/70 84/20+49/70