Answers

Subtract 16/21 from 64/15

1^st number: 4 4/15, 2^nd number: 16/21

64/15 - 16/21 is 368/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 21 is 105
   
   Next, find the equivalent fraction of both fractional numbers with denominator 105
2. For the 1st fraction, since 15 × 7 = 105,
   64/15 = 64 × 7/15 × 7 = 448/105
3. Likewise, for the 2nd fraction, since 21 × 5 = 105,
   16/21 = 16 × 5/21 × 5 = 80/105
4. Subtract the two like fractions:
   448/105 - 80/105 = 448 - 80/105 = 368/105
5. In mixed form: 353/105

MathStep (Works offline)

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

Related: ⁶⁴/₁₅-³²/₂₁ ⁶⁴/₃₀-¹⁶/₂₁ ⁶⁴/₁₅-¹⁶/₄₂ ⁶⁴/₁₅-⁴⁸/₂₁ ⁶⁴/₄₅-¹⁶/₂₁ ⁶⁴/₁₅-¹⁶/₆₃ ⁶⁴/₁₅-⁸⁰/₂₁ ⁶⁴/₇₅-¹⁶/₂₁

Subtract Fractions Calculator