Answers

Subtract 50/27 from 81/72

1^st number: 1 9/72, 2^nd number: 1 23/27

81/72 - 50/27 is -157/216.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 27 is 216
   
   Next, find the equivalent fraction of both fractional numbers with denominator 216
2. For the 1st fraction, since 72 × 3 = 216,
   81/72 = 81 × 3/72 × 3 = 243/216
3. Likewise, for the 2nd fraction, since 27 × 8 = 216,
   50/27 = 50 × 8/27 × 8 = 400/216
4. Subtract the two like fractions:
   243/216 - 400/216 = 243 - 400/216 = -157/216

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