Answers

Subtract 72/45 from 42/4

1^st number: 10 2/4, 2^nd number: 1 27/45

42/4 - 72/45 is 89/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 45 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   42/4 = 42 × 45/4 × 45 = 1890/180
3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
   72/45 = 72 × 4/45 × 4 = 288/180
4. Subtract the two like fractions:
   1890/180 - 288/180 = 1890 - 288/180 = 1602/180
5. After reducing the fraction, the answer is 89/10
6. In mixed form: 89/10

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