Add 3/5 and 72/70
1st number: 3/5, 2nd number: 1 2/70
3/5 + 72/70 is 57/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 5 × 14 = 70,
3/5 = 3 × 14/5 × 14 = 42/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
72/70 = 72 × 1/70 × 1 = 72/70 - Add the two like fractions:
42/70 + 72/70 = 42 + 72/70 = 114/70 - 114/70 simplified gives 57/35
- So, 3/5 + 72/70 = 57/35
In mixed form: 122/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/5+72/70 3/10+72/70 9/5+72/70 3/15+72/70 15/5+72/70 3/25+72/70 21/5+72/70 3/35+72/70