Answers

Subtract 35/70 from 3/18

3/18 - 35/70 is -1/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 18 × 35 = 630,
   3/18 = 3 × 35/18 × 35 = 105/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   35/70 = 35 × 9/70 × 9 = 315/630
4. Subtract the two like fractions:
   105/630 - 315/630 = 105 - 315/630 = -210/630
5. After reducing the fraction, the answer is -1/3

MathStep (Works offline)

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

Related: ⁶/₁₈-³⁵/₇₀ ³/₃₆-³⁵/₇₀ ⁹/₁₈-³⁵/₇₀ ³/₅₄-³⁵/₇₀ ¹⁵/₁₈-³⁵/₇₀ ³/₉₀-³⁵/₇₀ ²¹/₁₈-³⁵/₇₀

Subtract Fractions Calculator