Answers

Subtract 40/98 from 90/27

1^st number: 3 9/27, 2^nd number: 40/98

90/27 - 40/98 is 430/147.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 98 is 2646
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2646
2. For the 1st fraction, since 27 × 98 = 2646,
   90/27 = 90 × 98/27 × 98 = 8820/2646
3. Likewise, for the 2nd fraction, since 98 × 27 = 2646,
   40/98 = 40 × 27/98 × 27 = 1080/2646
4. Subtract the two like fractions:
   8820/2646 - 1080/2646 = 8820 - 1080/2646 = 7740/2646
5. After reducing the fraction, the answer is 430/147
6. In mixed form: 2136/147

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