Add 9/5 and 72/7
1st number: 1 4/5, 2nd number: 10 2/7
9/5 + 72/7 is 423/35.
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,
9/5 = 9 × 7/5 × 7 = 63/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
72/7 = 72 × 5/7 × 5 = 360/35 - Add the two like fractions:
63/35 + 360/35 = 63 + 360/35 = 423/35 - So, 9/5 + 72/7 = 423/35
In mixed form: 123/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/5+72/7 9/10+72/7 9/5+72/14 27/5+72/7 9/15+72/7 9/5+72/21 45/5+72/7 9/25+72/7 9/5+72/35 63/5+72/7 9/35+72/7 9/5+72/49