Add 50/7 and 72/20
1st number: 7 1/7, 2nd number: 3 12/20
50/7 + 72/20 is 376/35.
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,
50/7 = 50 × 20/7 × 20 = 1000/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
72/20 = 72 × 7/20 × 7 = 504/140 - Add the two like fractions:
1000/140 + 504/140 = 1000 + 504/140 = 1504/140 - 1504/140 simplified gives 376/35
- So, 50/7 + 72/20 = 376/35
In mixed form: 1026/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/14+72/20 50/7+72/40 50/21+72/20 50/7+72/60 50/35+72/20 50/49+72/20