Answers

Subtract 49/16 from 70/90

1^st number: 70/90, 2^nd number: 3 1/16

70/90 - 49/16 is -329/144.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   70/90 = 70 × 8/90 × 8 = 560/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   49/16 = 49 × 45/16 × 45 = 2205/720
4. Subtract the two like fractions:
   560/720 - 2205/720 = 560 - 2205/720 = -1645/720
5. After reducing the fraction, the answer is -329/144

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