Add 3/60 and 40/42
3/60 + 40/42 is 421/420.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 42 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
3/60 = 3 × 7/60 × 7 = 21/420 - Likewise, for the 2nd fraction, since 42 × 10 = 420,
40/42 = 40 × 10/42 × 10 = 400/420 - Add the two like fractions:
21/420 + 400/420 = 21 + 400/420 = 421/420 - So, 3/60 + 40/42 = 421/420
In mixed form: 11/420
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/60+40/42 3/60+80/42 3/60+40/84 9/60+40/42 15/60+40/42 21/60+40/42