Add 56/45 and 42/40
1st number: 1 11/45, 2nd number: 1 2/40
56/45 + 42/40 is 413/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 45 × 8 = 360,
56/45 = 56 × 8/45 × 8 = 448/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
42/40 = 42 × 9/40 × 9 = 378/360 - Add the two like fractions:
448/360 + 378/360 = 448 + 378/360 = 826/360 - 826/360 simplified gives 413/180
- So, 56/45 + 42/40 = 413/180
In mixed form: 253/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45+84/40 56/90+42/40 56/45+42/80