Subtract 6/48 from 90/40, Solve 2 10/40

Subtract 6/48 from 90/40

1^st number: 2 10/40, 2^nd number: 6/48

90/40 - 6/48 is 17/8.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 48 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 40 × 6 = 240,
90/40 = 90 × 6/40 × 6 = 540/240
Likewise, for the 2nd fraction, since 48 × 5 = 240,
6/48 = 6 × 5/48 × 5 = 30/240
Subtract the two like fractions:
540/240 - 30/240 = 540 - 30/240 = 510/240
After reducing the fraction, the answer is 17/8
In mixed form: 21/8

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