Answers

Add 72/10 and 81/75

1^st number: 7 2/10, 2^nd number: 1 6/75

72/10 + 81/75 is 207/25.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 75 is 150
   
   Next, find the equivalent fraction of both fractional numbers with denominator 150
2. For the 1st fraction, since 10 × 15 = 150,
   72/10 = 72 × 15/10 × 15 = 1080/150
3. Likewise, for the 2nd fraction, since 75 × 2 = 150,
   81/75 = 81 × 2/75 × 2 = 162/150
4. Add the two like fractions:
   1080/150 + 162/150 = 1080 + 162/150 = 1242/150
5. 1242/150 simplified gives 207/25
6. So, 72/10 + 81/75 = 207/25
   In mixed form: 87/25

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁷²/₂₀+⁸¹/₇₅ ⁷²/₃₀+⁸¹/₇₅ ⁷²/₅₀+⁸¹/₇₅ ⁷²/₇₀+⁸¹/₇₅

Add Fractions Calculator