Answers

Subtract 84/72 from 49/90

1^st number: 49/90, 2^nd number: 1 12/72

49/90 - 84/72 is -28/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 72 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 90 × 4 = 360,
   49/90 = 49 × 4/90 × 4 = 196/360
3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
   84/72 = 84 × 5/72 × 5 = 420/360
4. Subtract the two like fractions:
   196/360 - 420/360 = 196 - 420/360 = -224/360
5. After reducing the fraction, the answer is -28/45

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