Add 42/8 and 45/28
1st number: 5 2/8, 2nd number: 1 17/28
42/8 + 45/28 is 48/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
42/8 = 42 × 7/8 × 7 = 294/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
45/28 = 45 × 2/28 × 2 = 90/56 - Add the two like fractions:
294/56 + 90/56 = 294 + 90/56 = 384/56 - 384/56 simplified gives 48/7
- So, 42/8 + 45/28 = 48/7
In mixed form: 66/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+45/28 42/8+90/28 42/16+45/28 42/8+45/56 42/24+45/28 42/8+45/84 42/40+45/28 42/56+45/28