Answers

Subtract 7/90 from 75/42

1^st number: 1 33/42, 2^nd number: 7/90

75/42 - 7/90 is 538/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 90 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   75/42 = 75 × 15/42 × 15 = 1125/630
3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
   7/90 = 7 × 7/90 × 7 = 49/630
4. Subtract the two like fractions:
   1125/630 - 49/630 = 1125 - 49/630 = 1076/630
5. After reducing the fraction, the answer is 538/315
6. In mixed form: 1223/315

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