Add 42/70 and 5/28
42/70 + 5/28 is 109/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 28 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
42/70 = 42 × 2/70 × 2 = 84/140 - Likewise, for the 2nd fraction, since 28 × 5 = 140,
5/28 = 5 × 5/28 × 5 = 25/140 - Add the two like fractions:
84/140 + 25/140 = 84 + 25/140 = 109/140 - So, 42/70 + 5/28 = 109/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/70+5/28 42/70+10/28 42/70+5/56 42/70+15/28 42/70+5/84 42/70+25/28 42/70+35/28