Answers

Subtract 16/18 from 90/75

1^st number: 1 15/75, 2^nd number: 16/18

90/75 - 16/18 is 14/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 18 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 75 × 6 = 450,
   90/75 = 90 × 6/75 × 6 = 540/450
3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
   16/18 = 16 × 25/18 × 25 = 400/450
4. Subtract the two like fractions:
   540/450 - 400/450 = 540 - 400/450 = 140/450
5. After reducing the fraction, the answer is 14/45

MathStep (Works offline)

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

Related: ⁹⁰/₇₅-³²/₁₈ ⁹⁰/₇₅-¹⁶/₃₆ ⁹⁰/₇₅-⁴⁸/₁₈ ⁹⁰/₇₅-¹⁶/₅₄ ⁹⁰/₇₅-⁸⁰/₁₈ ⁹⁰/₇₅-¹⁶/₉₀

Subtract Fractions Calculator