Answers

Subtract 16/63 from 7/40

7/40 - 16/63 is -199/2520.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 63 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 40 × 63 = 2520,
   7/40 = 7 × 63/40 × 63 = 441/2520
3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
   16/63 = 16 × 40/63 × 40 = 640/2520
4. Subtract the two like fractions:
   441/2520 - 640/2520 = 441 - 640/2520 = -199/2520

MathStep (Works offline)

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

Related: ¹⁴/₄₀-¹⁶/₆₃ ⁷/₄₀-³²/₆₃ ⁷/₈₀-¹⁶/₆₃ ²¹/₄₀-¹⁶/₆₃ ⁷/₄₀-⁴⁸/₆₃ ³⁵/₄₀-¹⁶/₆₃ ⁷/₄₀-⁸⁰/₆₃ ⁴⁹/₄₀-¹⁶/₆₃

Subtract Fractions Calculator