Add 10/84 and 60/40
1st number: 10/84, 2nd number: 1 20/40
10/84 + 60/40 is 34/21.
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,
10/84 = 10 × 10/84 × 10 = 100/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
60/40 = 60 × 21/40 × 21 = 1260/840 - Add the two like fractions:
100/840 + 1260/840 = 100 + 1260/840 = 1360/840 - 1360/840 simplified gives 34/21
- So, 10/84 + 60/40 = 34/21
In mixed form: 113/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/84+60/40 10/84+60/80 30/84+60/40 50/84+60/40 70/84+60/40