Add 10/42 and 72/8
1st number: 10/42, 2nd number: 9 0/8
10/42 + 72/8 is 194/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 42 × 4 = 168,
10/42 = 10 × 4/42 × 4 = 40/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
72/8 = 72 × 21/8 × 21 = 1512/168 - Add the two like fractions:
40/168 + 1512/168 = 40 + 1512/168 = 1552/168 - 1552/168 simplified gives 194/21
- So, 10/42 + 72/8 = 194/21
In mixed form: 95/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/42+72/8 10/84+72/8 10/42+72/16 30/42+72/8 10/42+72/24 50/42+72/8 10/42+72/40 70/42+72/8 10/42+72/56