Answers

Subtract 21/90 from 49/36

1^st number: 1 13/36, 2^nd number: 21/90

49/36 - 21/90 is 203/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 36 × 5 = 180,
   49/36 = 49 × 5/36 × 5 = 245/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   21/90 = 21 × 2/90 × 2 = 42/180
4. Subtract the two like fractions:
   245/180 - 42/180 = 245 - 42/180 = 203/180
5. In mixed form: 123/180

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