Answers

Subtract 9/49 from 90/72

1^st number: 1 18/72, 2^nd number: 9/49

90/72 - 9/49 is 209/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 49 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 72 × 49 = 3528,
   90/72 = 90 × 49/72 × 49 = 4410/3528
3. Likewise, for the 2nd fraction, since 49 × 72 = 3528,
   9/49 = 9 × 72/49 × 72 = 648/3528
4. Subtract the two like fractions:
   4410/3528 - 648/3528 = 4410 - 648/3528 = 3762/3528
5. After reducing the fraction, the answer is 209/196
6. In mixed form: 113/196

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