Add 8/42 and 45/60
8/42 + 45/60 is 79/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
8/42 = 8 × 10/42 × 10 = 80/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
45/60 = 45 × 7/60 × 7 = 315/420 - Add the two like fractions:
80/420 + 315/420 = 80 + 315/420 = 395/420 - 395/420 simplified gives 79/84
- So, 8/42 + 45/60 = 79/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/42+45/60 8/42+90/60 8/84+45/60 24/42+45/60 40/42+45/60 56/42+45/60