Add 1/40 and 18/84
1/40 + 18/84 is 67/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 84 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
1/40 = 1 × 21/40 × 21 = 21/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
18/84 = 18 × 10/84 × 10 = 180/840 - Add the two like fractions:
21/840 + 180/840 = 21 + 180/840 = 201/840 - 201/840 simplified gives 67/280
- So, 1/40 + 18/84 = 67/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/40+18/84 1/40+36/84 1/80+18/84 3/40+18/84 1/40+54/84 5/40+18/84 1/40+90/84 7/40+18/84