Add 42/56 and 45/10
1st number: 42/56, 2nd number: 4 5/10
42/56 + 45/10 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 10 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
42/56 = 42 × 5/56 × 5 = 210/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
45/10 = 45 × 28/10 × 28 = 1260/280 - Add the two like fractions:
210/280 + 1260/280 = 210 + 1260/280 = 1470/280 - 1470/280 simplified gives 21/4
- So, 42/56 + 45/10 = 21/4
In mixed form: 51/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+45/10 42/56+90/10 42/56+45/20 42/56+45/30 42/56+45/50 42/56+45/70