Add 8/42 and 1/40
8/42 + 1/40 is 181/840.
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,
8/42 = 8 × 20/42 × 20 = 160/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
1/40 = 1 × 21/40 × 21 = 21/840 - Add the two like fractions:
160/840 + 21/840 = 160 + 21/840 = 181/840 - So, 8/42 + 1/40 = 181/840
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+1/40 8/42+2/40 8/84+1/40 8/42+1/80 24/42+1/40 8/42+3/40 40/42+1/40 8/42+5/40 56/42+1/40 8/42+7/40