Add 3/40 and 8/45
3/40 + 8/45 is 91/360.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 45 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
3/40 = 3 × 9/40 × 9 = 27/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
8/45 = 8 × 8/45 × 8 = 64/360 - Add the two like fractions:
27/360 + 64/360 = 27 + 64/360 = 91/360 - So, 3/40 + 8/45 = 91/360
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40+8/45 3/40+16/45 3/80+8/45 3/40+8/90 9/40+8/45 3/40+24/45 15/40+8/45 3/40+40/45 21/40+8/45 3/40+56/45