The fraction of the original mass that was lost in the second month is 1/12.
What is the fraction?
A fraction is a non-integer that is made up of numerators and denominators. An example of a fraction is 1/6.
Weight lost in the first month = 1/6 x 120 = 20kg
Weight lost in the second month = 1/10 x (120 - 20)
= 1/10 x 100 = 10kg
Fraction of the original mass that was lost in the second month : weight lost in the second month / total mass
10 kg / 120 = 1/12
To learn more about multiplication of fractions, please check: https://brainly.com/question/1114498
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