Add 42/14 and 90/56
1st number: 3 0/14, 2nd number: 1 34/56
42/14 + 90/56 is 129/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 56 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 14 × 4 = 56,
42/14 = 42 × 4/14 × 4 = 168/56 - Likewise, for the 2nd fraction, since 56 × 1 = 56,
90/56 = 90 × 1/56 × 1 = 90/56 - Add the two like fractions:
168/56 + 90/56 = 168 + 90/56 = 258/56 - 258/56 simplified gives 129/28
- So, 42/14 + 90/56 = 129/28
In mixed form: 417/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/14+90/56 42/28+90/56 42/70+90/56 42/98+90/56