Answers

Subtract 10/7 from 3/10

1^st number: 3/10, 2^nd number: 1 3/7

3/10 - 10/7 is -79/70.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 7 is 70
   
   Next, find the equivalent fraction of both fractional numbers with denominator 70
2. For the 1st fraction, since 10 × 7 = 70,
   3/10 = 3 × 7/10 × 7 = 21/70
3. Likewise, for the 2nd fraction, since 7 × 10 = 70,
   10/7 = 10 × 10/7 × 10 = 100/70
4. Subtract the two like fractions:
   21/70 - 100/70 = 21 - 100/70 = -79/70

MathStep (Works offline)

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

Related: ⁶/₁₀-¹⁰/₇ ³/₁₀-²⁰/₇ ³/₂₀-¹⁰/₇ ³/₁₀-¹⁰/₁₄ ⁹/₁₀-¹⁰/₇ ³/₁₀-³⁰/₇ ³/₃₀-¹⁰/₇ ³/₁₀-¹⁰/₂₁ ¹⁵/₁₀-¹⁰/₇ ³/₁₀-⁵⁰/₇ ³/₅₀-¹⁰/₇ ³/₁₀-¹⁰/₃₅ ²¹/₁₀-¹⁰/₇ ³/₁₀-⁷⁰/₇ ³/₇₀-¹⁰/₇ ³/₁₀-¹⁰/₄₉

Subtract Fractions Calculator