Add 20/30 and 48/7
1st number: 20/30, 2nd number: 6 6/7
20/30 + 48/7 is 158/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 7 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 30 × 7 = 210,
20/30 = 20 × 7/30 × 7 = 140/210 - Likewise, for the 2nd fraction, since 7 × 30 = 210,
48/7 = 48 × 30/7 × 30 = 1440/210 - Add the two like fractions:
140/210 + 1440/210 = 140 + 1440/210 = 1580/210 - 1580/210 simplified gives 158/21
- So, 20/30 + 48/7 = 158/21
In mixed form: 711/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30+48/7 20/30+96/7 20/60+48/7 20/30+48/14 60/30+48/7 20/90+48/7 20/30+48/21 20/30+48/35 20/30+48/49