Add 42/60 and 18/84
42/60 + 18/84 is 32/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
42/60 = 42 × 7/60 × 7 = 294/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
18/84 = 18 × 5/84 × 5 = 90/420 - Add the two like fractions:
294/420 + 90/420 = 294 + 90/420 = 384/420 - 384/420 simplified gives 32/35
- So, 42/60 + 18/84 = 32/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/60+18/84 42/60+36/84 42/60+54/84 42/60+90/84