Add 10/40 and 40/84
10/40 + 40/84 is 61/84.
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,
10/40 = 10 × 21/40 × 21 = 210/840 - Likewise, for the 2nd fraction, since 84 × 10 = 840,
40/84 = 40 × 10/84 × 10 = 400/840 - Add the two like fractions:
210/840 + 400/840 = 210 + 400/840 = 610/840 - 610/840 simplified gives 61/84
- So, 10/40 + 40/84 = 61/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/40+40/84 10/40+80/84 10/80+40/84 30/40+40/84 50/40+40/84 70/40+40/84