Addition Portion:
3/50+7/10 = 19/25
It is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(50, 10) = 50. It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 50 × 10 = 500. In the following intermediate step, cancel by a common factor of 2 gives 19/25.
In other words - three fiftieths plus seven tenths equals nineteen twenty-fifths.
Subtraction Portion:
3/50 - 7/10 = 16/25
It is suitable to adjust both fractions to a common (equal, identical) denominator for adding, subtracting, and comparing fractions. The common denominator you can calculate as the least common multiple of both denominators - LCM(50, 10) = 50. It is enough to find the common denominator (not necessarily the lowest) by multiplying the denominators: 50 × 10 = 500. In the following intermediate step, it cannot further simplify the fraction result by canceling.
In other words - three fiftieths minus seven tenths is minus sixteen twenty-fifths.
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