Add 6/42 and 10/40
6/42 + 10/40 is 11/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 42 × 20 = 840,
6/42 = 6 × 20/42 × 20 = 120/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
10/40 = 10 × 21/40 × 21 = 210/840 - Add the two like fractions:
120/840 + 210/840 = 120 + 210/840 = 330/840 - 330/840 simplified gives 11/28
- So, 6/42 + 10/40 = 11/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/42+10/40 6/42+20/40 6/84+10/40 6/42+10/80 18/42+10/40 6/42+30/40 30/42+10/40 6/42+50/40 6/42+70/40