Add 75/7 and 6/20
1st number: 10 5/7, 2nd number: 6/20
75/7 + 6/20 is 771/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
75/7 = 75 × 20/7 × 20 = 1500/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
6/20 = 6 × 7/20 × 7 = 42/140 - Add the two like fractions:
1500/140 + 42/140 = 1500 + 42/140 = 1542/140 - 1542/140 simplified gives 771/70
- So, 75/7 + 6/20 = 771/70
In mixed form: 111/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/7+12/20 75/14+6/20 75/7+6/40 75/7+18/20 75/21+6/20 75/7+6/60 75/7+30/20 75/35+6/20 75/7+42/20 75/49+6/20