Add 1/40 and 42/45
1/40 + 42/45 is 23/24.
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,
1/40 = 1 × 9/40 × 9 = 9/360 - Likewise, for the 2nd fraction, since 45 × 8 = 360,
42/45 = 42 × 8/45 × 8 = 336/360 - Add the two like fractions:
9/360 + 336/360 = 9 + 336/360 = 345/360 - 345/360 simplified gives 23/24
- So, 1/40 + 42/45 = 23/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40+42/45 1/40+84/45 1/80+42/45 1/40+42/90 3/40+42/45 5/40+42/45 7/40+42/45