Subtract 21/35 from 40/16, Solve 2 8/16

Subtract 21/35 from 40/16

1^st number: 2 8/16, 2^nd number: 21/35

40/16 - 21/35 is 19/10.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 35 is 560

Next, find the equivalent fraction of both fractional numbers with denominator 560
For the 1st fraction, since 16 × 35 = 560,
40/16 = 40 × 35/16 × 35 = 1400/560
Likewise, for the 2nd fraction, since 35 × 16 = 560,
21/35 = 21 × 16/35 × 16 = 336/560
Subtract the two like fractions:
1400/560 - 336/560 = 1400 - 336/560 = 1064/560
After reducing the fraction, the answer is 19/10
In mixed form: 19/10

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