Answers

Subtract 10/45 from 42/18

1^st number: 2 6/18, 2^nd number: 10/45

42/18 - 10/45 is 19/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 45 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   42/18 = 42 × 5/18 × 5 = 210/90
3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
   10/45 = 10 × 2/45 × 2 = 20/90
4. Subtract the two like fractions:
   210/90 - 20/90 = 210 - 20/90 = 190/90
5. After reducing the fraction, the answer is 19/9
6. In mixed form: 21/9

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