Answers

Subtract 40/49 from 21/4

1^st number: 5 1/4, 2^nd number: 40/49

21/4 - 40/49 is 869/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 49 is 196
2. For the 1st fraction, since 4 × 49 = 196,
   21/4 = 21 × 49/4 × 49 = 1029/196
3. Likewise, for the 2nd fraction, since 49 × 4 = 196,
   40/49 = 40 × 4/49 × 4 = 160/196
4. Subtract the two fractions:
   1029/196 - 160/196 = 1029 - 160/196 = 869/196
5. In mixed form: 485/196

MathStep (Works offline)

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

Related: ⁴²/₄-⁴⁰/₄₉ ²¹/₄-⁸⁰/₄₉ ²¹/₈-⁴⁰/₄₉ ²¹/₄-⁴⁰/₉₈ ⁶³/₄-⁴⁰/₄₉ ²¹/₁₂-⁴⁰/₄₉ ²¹/₂₀-⁴⁰/₄₉ ²¹/₂₈-⁴⁰/₄₉

Subtract Fractions Calculator