subtract 2by9 from 3by10
Answers
Answered by
1
Answer:
2
9
-
3
10
is
-7
90
.
Steps for subtracting fractions
Find the least common denominator or LCM of the two denominators:
LCM of 9 and 10 is 90
For the 1st fraction, since 9 × 10 = 90,
2
9
=
2 × 10
9 × 10
=
20
90
Likewise, for the 2nd fraction, since 10 × 9 = 90,
3
10
=
3 × 9
10 × 9
=
27
90
Subtract the two fractions:
20
90
-
27
90
=
20 - 27
90
=
-7
90
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