Add 15/35 and 9/60
15/35 + 9/60 is 81/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 35 × 12 = 420,
15/35 = 15 × 12/35 × 12 = 180/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
9/60 = 9 × 7/60 × 7 = 63/420 - Add the two like fractions:
180/420 + 63/420 = 180 + 63/420 = 243/420 - 243/420 simplified gives 81/140
- So, 15/35 + 9/60 = 81/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+9/60 15/35+18/60 15/70+9/60 45/35+9/60 15/35+27/60 75/35+9/60 15/35+45/60 15/35+63/60