1. Determine whether the following fractions are equivalent:

(a) 58 and 1524

(b) 711 and 1433

2. Express the following fractions with equal denominators:

(a) 25, 710, 940

3. Arrange the following fractions in ascending order:

(a) 67, 921, 1650, 763

4. Convert the following into mixed numbers:

(a) 20m70910 cm + 10m801750 cm

(b) 7m402725 cm - 12m17925 cm

5. Add the following fractions:

(a) 58 + 316

(b) 67 + 17

6. Subtract the following fractions:

(a) 38 - 12

(b) 415 - 1345

7. Arrange the following fractions in descending order:

(a) 34, 67, 512