Answers

Subtract 1/72 from 90/42

1^st number: 2 6/42, 2^nd number: 1/72

90/42 - 1/72 is 1073/504.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   90/42 = 90 × 12/42 × 12 = 1080/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   1/72 = 1 × 7/72 × 7 = 7/504
4. Subtract the two like fractions:
   1080/504 - 7/504 = 1080 - 7/504 = 1073/504
5. In mixed form: 265/504

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