Question

Find 7/15-9/20
Please answer me​

Answer 1

Step-by-step explanation:

$7 \div 15 - 9 \div 20 \\ 28 - 18 \div 60 \\ 1 0 \div 60 \\ 1 \div 6$

Answer 2

Step-by-step explanation:

Find the least common denominator or LCM of the two denominators:

LCM of 15 and 20 is 60

For the 1st fraction, since 15 × 4 = 60,

7

15

=

7 × 4

15 × 4

=

28

60

Likewise, for the 2nd fraction, since 20 × 3 = 60,

9

20

=

9 × 3

20 × 3

=

27

60

Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction

28

60

>

27

60

or

7

15

>

9

20