1.

6 whole 7/10 - 4 whole 1/5​

Answer»

Step-by-step EXPLANATION:

So it is MIXED fractions , hence we must change it to improper fraction .

(6×10)+7 / 10 - (4 × 5)+1/5 =

that's is 67/10 - 21/5 =

then get the same denominators LCM .

that's is 10

67 × 1. 67

---- = ----

10. × 1. 10

21. × 2. 42

---- = ------

5 × 2. 10

then , subtract the numerator.

67 - 42 / 10 = 25/10

25/10 can be written as 5/2 or as decimal 2.5 .



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