Answers

Subtract 7/90 from 28/25

1^st number: 1 3/25, 2^nd number: 7/90

28/25 - 7/90 is 469/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 25 × 18 = 450,
   28/25 = 28 × 18/25 × 18 = 504/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   7/90 = 7 × 5/90 × 5 = 35/450
4. Subtract the two like fractions:
   504/450 - 35/450 = 504 - 35/450 = 469/450
5. In mixed form: 119/450

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