Question

add the following :–
54 -60 18
— + — + —
90 90 90​

Answer 1

Answer:

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Step-by-step explanation:

1st number: 6/8, 2nd number: 3 0/18

6

8

+

54

18

is

15

4

.

Steps for adding fractions

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

LCM of 8 and 18 is 72

Next, find the equivalent fraction of both fractional numbers with denominator 72

For the 1st fraction, since 8 × 9 = 72,

6

8

=

6 × 9

8 × 9

=

54

72

Likewise, for the 2nd fraction, since 18 × 4 = 72,

54

18

=

54 × 4

18 × 4

=

216

72

Add the two like fractions:

54

72

+

216

72

=

54 + 216

72

=

270

72

270/72 simplified gives

15

4

So, 6/8 + 54/18 = 15/4

In mixed form: 3

3

4

Answer 2

54 + 36 = 90

-60 + (-30) = 90

18+ 72 = 90

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