Question

7 1/5 - 3 3/5= 15 1/3 - 8 2/3= 7 3/10 - 5 9/10=

Answer 1

7 1/5 – 3 3/5 = (7×5+1) – (3×5+3) = 36/5 – 18/5 = 18/5 = 3 3/5.

15 1/3 – 8 2/3 = (15×3+1) – (8×3+2) = 46/3 – 26/3 = 20/3 = 6 2/3.

7 3/10 – 5 9/10 = (7×10+3) – (5×10+9) = 73/10 – 59/10 = 14/10 = 7/5 = 1 2/5.

Answer 2

Ответ: ↓↓↓↑↓⇔

7 1/5 - 3 3/5 =  3 3/5

15 1/3 - 8 2/3 =   6 2/3

7 3/10 - 5 9/10 = 1 2/5

Пошаговое объяснение: на фото. удачи ва учёбе!!! ↓↓↓

Answer 3

To solve these subtraction problems involving mixed numbers, you need to borrow or regroup when necessary. Here are the step-by-step solutions:

1. 7 1/5 - 3 3/5: Start by subtracting the whole numbers: 7 - 3 = 4. Then subtract the fractions: 1/5 - 3/5 = -2/5. Since the result is negative, we need to borrow from the whole number: 4 - 1 = 3. Combine the whole number and fraction: 3 - 2/5 = 2 3/5.

2. 15 1/3 - 8 2/3: Start by subtracting the whole numbers: 15 - 8 = 7. Then subtract the fractions: 1/3 - 2/3 = -1/3. Since the result is negative, we need to borrow from the whole number: 7 - 1 = 6. Combine the whole number and fraction: 6 - 1/3 = 5 2/3.

3. 7 3/10 - 5 9/10: Start by subtracting the whole numbers: 7 - 5 = 2. Then subtract the fractions: 3/10 - 9/10 = -6/10. Since the result is negative, we need to borrow from the whole number: 2 - 1 = 1. Combine the whole number and fraction: 1 - 6/10 = 9/10. Therefore, the final answer is 1 9/10.