Add 3/5 and 72/7
1st number: 3/5, 2nd number: 10 2/7
3/5 + 72/7 is 381/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
3/5 = 3 × 7/5 × 7 = 21/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
72/7 = 72 × 5/7 × 5 = 360/35 - Add the two like fractions:
21/35 + 360/35 = 21 + 360/35 = 381/35 - So, 3/5 + 72/7 = 381/35
In mixed form: 1031/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+72/7 3/10+72/7 3/5+72/14 9/5+72/7 3/15+72/7 3/5+72/21 15/5+72/7 3/25+72/7 3/5+72/35 21/5+72/7 3/35+72/7 3/5+72/49