Add 15/25 and 72/30
1st number: 15/25, 2nd number: 2 12/30
15/25 + 72/30 is 3/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 25 × 6 = 150,
15/25 = 15 × 6/25 × 6 = 90/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
72/30 = 72 × 5/30 × 5 = 360/150 - Add the two like fractions:
90/150 + 360/150 = 90 + 360/150 = 450/150 - 450/150 simplified gives 3/1
- So, 15/25 + 72/30 = 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/25+72/30 15/50+72/30 15/25+72/60 45/25+72/30 15/75+72/30 15/25+72/90 75/25+72/30