Add 21/72 and 75/10
1st number: 21/72, 2nd number: 7 5/10
21/72 + 75/10 is 187/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 10 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
21/72 = 21 × 5/72 × 5 = 105/360 - Likewise, for the 2nd fraction, since 10 × 36 = 360,
75/10 = 75 × 36/10 × 36 = 2700/360 - Add the two like fractions:
105/360 + 2700/360 = 105 + 2700/360 = 2805/360 - 2805/360 simplified gives 187/24
- So, 21/72 + 75/10 = 187/24
In mixed form: 719/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/72+75/10 21/72+75/20 63/72+75/10 21/72+75/30 21/72+75/50 21/72+75/70