Answers

Subtract 45/24 from 20/45

1^st number: 20/45, 2^nd number: 1 21/24

20/45 - 45/24 is -103/72.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 24 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 45 × 8 = 360,
   20/45 = 20 × 8/45 × 8 = 160/360
3. Likewise, for the 2nd fraction, since 24 × 15 = 360,
   45/24 = 45 × 15/24 × 15 = 675/360
4. Subtract the two like fractions:
   160/360 - 675/360 = 160 - 675/360 = -515/360
5. After reducing the fraction, the answer is -103/72

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