Answers

Subtract 42/60 from 90/72

1^st number: 1 18/72, 2^nd number: 42/60

90/72 - 42/60 is 11/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 60 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 72 × 5 = 360,
   90/72 = 90 × 5/72 × 5 = 450/360
3. Likewise, for the 2nd fraction, since 60 × 6 = 360,
   42/60 = 42 × 6/60 × 6 = 252/360
4. Subtract the two like fractions:
   450/360 - 252/360 = 450 - 252/360 = 198/360
5. After reducing the fraction, the answer is 11/20

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