Subtract 18/70 from 27/24, Solve 1 3/24

Subtract 18/70 from 27/24

1^st number: 1 3/24, 2^nd number: 18/70

27/24 - 18/70 is 243/280.

Find the least common denominator or LCM of the two denominators:
LCM of 24 and 70 is 840

Next, find the equivalent fraction of both fractional numbers with denominator 840
For the 1st fraction, since 24 × 35 = 840,
27/24 = 27 × 35/24 × 35 = 945/840
Likewise, for the 2nd fraction, since 70 × 12 = 840,
18/70 = 18 × 12/70 × 12 = 216/840
Subtract the two like fractions:
945/840 - 216/840 = 945 - 216/840 = 729/840
After reducing the fraction, the answer is 243/280

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