Question

w
Riya has 3 1/2bottles of milk in her refrigerator. She used 3/5
bottles of milk in the morning and
1 1/4
bottles of milk in the afternoon. How many bottles of milk does Riya have left over?​

Answer 1

Answer:

243/20 bottles is the answer

Step-by-step explanation:

bottles of milk Riya has = 31/2

bottle she used in morning =3/5

bottle she used in afternoon =11/4

bottles she used in total =3/5+11/4

lcm of 5 and 4

is 20

3/5 × 4/4 =12/20

11/5 × 5/5 = 55/20

= 12/20 + 55/20

= 67/20

therefore bottles of milk left = 31/2 - 67/20

lcm of 2 and 20

is 20

= 31/2 × 10/10 = 310/20

= 67/20 × 1/1 = 67/20

= 310/20 - 67/20

= 243/20 bottles left

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