MACHINE SHOP CALCULATION - OD1640 - LESSON 1/TASK 1
FIGURE 4.
1/4 IS LARGER THAN 1/6.
a.
Rule 1.
When two fractions have equal numerators and denominators
they are of equal value.
EXAMPLE
3/4 and 3/4 are equal fractions.
b.
Rule 2.
When two fractions have equal denominators, the fraction
having the larger numerator is the greater in value.
EXAMPLE
3/7 and 4/7.
4/7 is the larger fraction as it represents 4 of 7 equal
parts, whereas 3/7 represents only 3 of 7 equal parts.
c.
Rule 3.
When two fractions have the same numerator, the fraction
having the larger denominator is always the smaller.
EXAMPLE
3/4 and 3/8. 3/8 is a smaller fraction than 3/4. 3/8 is only 3 of 8 equal
parts, whereas 3/4 is 3 of 4 equal parts, as shown in figure 5 on the
following page.
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