Add 5/4 and 42/40
1st number: 1 1/4, 2nd number: 1 2/40
5/4 + 42/40 is 23/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 40 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 4 × 10 = 40,
5/4 = 5 × 10/4 × 10 = 50/40 - Likewise, for the 2nd fraction, since 40 × 1 = 40,
42/40 = 42 × 1/40 × 1 = 42/40 - Add the two like fractions:
50/40 + 42/40 = 50 + 42/40 = 92/40 - 92/40 simplified gives 23/10
- So, 5/4 + 42/40 = 23/10
In mixed form: 23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/4+42/40 5/4+84/40 5/8+42/40 5/4+42/80 15/4+42/40 5/12+42/40 25/4+42/40 5/20+42/40 35/4+42/40 5/28+42/40