Answers

Subtract 90/12 from 48/45

1^st number: 1 3/45, 2^nd number: 7 6/12

48/45 - 90/12 is -193/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 12 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 45 × 4 = 180,
   48/45 = 48 × 4/45 × 4 = 192/180
3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
   90/12 = 90 × 15/12 × 15 = 1350/180
4. Subtract the two like fractions:
   192/180 - 1350/180 = 192 - 1350/180 = -1158/180
5. After reducing the fraction, the answer is -193/30

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