Add 9/15 and 4/40
9/15 + 4/40 is 7/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
9/15 = 9 × 8/15 × 8 = 72/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
4/40 = 4 × 3/40 × 3 = 12/120 - Add the two like fractions:
72/120 + 12/120 = 72 + 12/120 = 84/120 - 84/120 simplified gives 7/10
- So, 9/15 + 4/40 = 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15+4/40 9/15+8/40 9/30+4/40 9/15+4/80 27/15+4/40 9/15+12/40 9/45+4/40 45/15+4/40 9/15+20/40 9/75+4/40 63/15+4/40 9/15+28/40