Add 15/40 and 4/35
15/40 + 4/35 is 137/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 35 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
15/40 = 15 × 7/40 × 7 = 105/280 - Likewise, for the 2nd fraction, since 35 × 8 = 280,
4/35 = 4 × 8/35 × 8 = 32/280 - Add the two like fractions:
105/280 + 32/280 = 105 + 32/280 = 137/280 - So, 15/40 + 4/35 = 137/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/40+4/35 15/40+8/35 15/80+4/35 15/40+4/70 45/40+4/35 15/40+12/35 75/40+4/35 15/40+20/35 15/40+28/35