Add 42/10 and 40/8
1st number: 4 2/10, 2nd number: 5 0/8
42/10 + 40/8 is 46/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
42/10 = 42 × 4/10 × 4 = 168/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
40/8 = 40 × 5/8 × 5 = 200/40 - Add the two like fractions:
168/40 + 200/40 = 168 + 200/40 = 368/40 - 368/40 simplified gives 46/5
- So, 42/10 + 40/8 = 46/5
In mixed form: 91/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/10+40/8 42/10+80/8 42/20+40/8 42/10+40/16 42/30+40/8 42/10+40/24 42/50+40/8 42/70+40/8 42/10+40/56