Add 40/84 and 4/40
40/84 + 4/40 is 121/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
40/84 = 40 × 10/84 × 10 = 400/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
4/40 = 4 × 21/40 × 21 = 84/840 - Add the two like fractions:
400/840 + 84/840 = 400 + 84/840 = 484/840 - 484/840 simplified gives 121/210
- So, 40/84 + 4/40 = 121/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/84+4/40 40/84+8/40 40/84+4/80 40/84+12/40 40/84+20/40 40/84+28/40