Subtract 2/45 from 90/28, Solve 3 6/28

Subtract 2/45 from 90/28

1^st number: 3 6/28, 2^nd number: 2/45

90/28 - 2/45 is 1997/630.

Find the least common denominator or LCM of the two denominators:
LCM of 28 and 45 is 1260

Next, find the equivalent fraction of both fractional numbers with denominator 1260
For the 1st fraction, since 28 × 45 = 1260,
90/28 = 90 × 45/28 × 45 = 4050/1260
Likewise, for the 2nd fraction, since 45 × 28 = 1260,
2/45 = 2 × 28/45 × 28 = 56/1260
Subtract the two like fractions:
4050/1260 - 56/1260 = 4050 - 56/1260 = 3994/1260
After reducing the fraction, the answer is 1997/630
In mixed form: 3107/630

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