Answers

Subtract 15/72 from 90/50

1^st number: 1 40/50, 2^nd number: 15/72

90/50 - 15/72 is 191/120.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 50 and 72 is 1800
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1800
2. For the 1st fraction, since 50 × 36 = 1800,
   90/50 = 90 × 36/50 × 36 = 3240/1800
3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
   15/72 = 15 × 25/72 × 25 = 375/1800
4. Subtract the two like fractions:
   3240/1800 - 375/1800 = 3240 - 375/1800 = 2865/1800
5. After reducing the fraction, the answer is 191/120
6. In mixed form: 171/120

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