Answers

Subtract 30/48 from 90/45

1^st number: 2 0/45, 2^nd number: 30/48

90/45 - 30/48 is 11/8.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 48 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   90/45 = 90 × 16/45 × 16 = 1440/720
3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
   30/48 = 30 × 15/48 × 15 = 450/720
4. Subtract the two like fractions:
   1440/720 - 450/720 = 1440 - 450/720 = 990/720
5. After reducing the fraction, the answer is 11/8
6. In mixed form: 13/8

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