Answers

Subtract 42/90 from 49/16

1^st number: 3 1/16, 2^nd number: 42/90

49/16 - 42/90 is 623/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 90 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 16 × 45 = 720,
   49/16 = 49 × 45/16 × 45 = 2205/720
3. Likewise, for the 2nd fraction, since 90 × 8 = 720,
   42/90 = 42 × 8/90 × 8 = 336/720
4. Subtract the two like fractions:
   2205/720 - 336/720 = 2205 - 336/720 = 1869/720
5. After reducing the fraction, the answer is 623/240
6. In mixed form: 2143/240

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