Answers

Add 15/8 and 72/60

1^st number: 1 7/8, 2^nd number: 1 12/60

15/8 + 72/60 is 123/40.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 60 is 120
   
   Next, find the equivalent fraction of both fractional numbers with denominator 120
2. For the 1st fraction, since 8 × 15 = 120,
   15/8 = 15 × 15/8 × 15 = 225/120
3. Likewise, for the 2nd fraction, since 60 × 2 = 120,
   72/60 = 72 × 2/60 × 2 = 144/120
4. Add the two like fractions:
   225/120 + 144/120 = 225 + 144/120 = 369/120
5. 369/120 simplified gives 123/40
6. So, 15/8 + 72/60 = 123/40
   In mixed form: 33/40

MathStep (Works offline)

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

Related: ³⁰/₈+⁷²/₆₀ ¹⁵/₁₆+⁷²/₆₀ ⁴⁵/₈+⁷²/₆₀ ¹⁵/₂₄+⁷²/₆₀ ⁷⁵/₈+⁷²/₆₀ ¹⁵/₄₀+⁷²/₆₀ ¹⁵/₅₆+⁷²/₆₀

Add Fractions Calculator