Add 42/5 and 75/72
1st number: 8 2/5, 2nd number: 1 3/72
42/5 + 75/72 is 1133/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 5 × 72 = 360,
42/5 = 42 × 72/5 × 72 = 3024/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
75/72 = 75 × 5/72 × 5 = 375/360 - Add the two like fractions:
3024/360 + 375/360 = 3024 + 375/360 = 3399/360 - 3399/360 simplified gives 1133/120
- So, 42/5 + 75/72 = 1133/120
In mixed form: 953/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/5+75/72 42/10+75/72 42/15+75/72 42/25+75/72 42/35+75/72