Add 90/56 and 3/40
1st number: 1 34/56, 2nd number: 3/40
90/56 + 3/40 is 471/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
90/56 = 90 × 5/56 × 5 = 450/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
3/40 = 3 × 7/40 × 7 = 21/280 - Add the two like fractions:
450/280 + 21/280 = 450 + 21/280 = 471/280 - So, 90/56 + 3/40 = 471/280
In mixed form: 1191/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/56+6/40 90/56+3/80 90/56+9/40 90/56+15/40 90/56+21/40