PLEASE HELP TEACHER IS CALLING NAME *LOTS OF POINTS PLEASE SHOW WORK*
1. 5/7*2/3
2. (0.43)(0.8)
3. 2,1/3*2/5
4. 1,6/7*1,1/2 btw the commas mean 1 and 6/7, etc

11/21

Step-by-step explanation: Subtract: 67 - 26 = 6 · 67 · 6 - 2 · 76 · 7 = 3642 - 1442 = 36 - 1442 = 2242 = 2 · 112 · 21 = 1121

For adding, subtracting, and comparing fractions, it is suitable to adjust both fractions to a common (equal, identical) denominator. The common denominator you can calculate as the least common multiple of the both denominators - LCM(7, 6) = 42. In practice, it is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 7 × 6 = 42. In the next intermediate step , cancel by a common factor of 2 gives 1121.  

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step-by-step explanation: