Add 2/40 and 2/42
2/40 + 2/42 is 41/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 42 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 40 × 21 = 840,
2/40 = 2 × 21/40 × 21 = 42/840 - Likewise, for the 2nd fraction, since 42 × 20 = 840,
2/42 = 2 × 20/42 × 20 = 40/840 - Add the two like fractions:
42/840 + 40/840 = 42 + 40/840 = 82/840 - 82/840 simplified gives 41/420
- So, 2/40 + 2/42 = 41/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/40+2/42 2/40+4/42 2/80+2/42 2/40+2/84 6/40+2/42 2/40+6/42 10/40+2/42 2/40+10/42 14/40+2/42 2/40+14/42