Add 8/4 and 30/70
1st number: 2 0/4, 2nd number: 30/70
8/4 + 30/70 is 17/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 4 × 35 = 140,
8/4 = 8 × 35/4 × 35 = 280/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
30/70 = 30 × 2/70 × 2 = 60/140 - Add the two like fractions:
280/140 + 60/140 = 280 + 60/140 = 340/140 - 340/140 simplified gives 17/7
- So, 8/4 + 30/70 = 17/7
In mixed form: 23/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/4+30/70 8/4+60/70 24/4+30/70 8/4+90/70 8/12+30/70 40/4+30/70 8/20+30/70 56/4+30/70 8/28+30/70