Add 40/25 and 54/42
1st number: 1 15/25, 2nd number: 1 12/42
40/25 + 54/42 is 101/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 42 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 25 × 42 = 1050,
40/25 = 40 × 42/25 × 42 = 1680/1050 - Likewise, for the 2nd fraction, since 42 × 25 = 1050,
54/42 = 54 × 25/42 × 25 = 1350/1050 - Add the two like fractions:
1680/1050 + 1350/1050 = 1680 + 1350/1050 = 3030/1050 - 3030/1050 simplified gives 101/35
- So, 40/25 + 54/42 = 101/35
In mixed form: 231/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25+54/42 40/50+54/42 40/25+54/84 40/75+54/42