Answers

Subtract 60/14 from 90/72

1^st number: 1 18/72, 2^nd number: 4 4/14

90/72 - 60/14 is -85/28.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 14 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   90/72 = 90 × 7/72 × 7 = 630/504
3. Likewise, for the 2nd fraction, since 14 × 36 = 504,
   60/14 = 60 × 36/14 × 36 = 2160/504
4. Subtract the two like fractions:
   630/504 - 2160/504 = 630 - 2160/504 = -1530/504
5. After reducing the fraction, the answer is -85/28

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