Add 5/12 and 42/70
5/12 + 42/70 is 61/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
5/12 = 5 × 35/12 × 35 = 175/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
42/70 = 42 × 6/70 × 6 = 252/420 - Add the two like fractions:
175/420 + 252/420 = 175 + 252/420 = 427/420 - 427/420 simplified gives 61/60
- So, 5/12 + 42/70 = 61/60
In mixed form: 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/12+42/70 5/12+84/70 5/24+42/70 15/12+42/70 5/36+42/70 25/12+42/70 5/60+42/70 35/12+42/70 5/84+42/70