Add 75/60 and 42/70, Solve 1 15/60 + 42/70 as a fraction

Add 75/60 and 42/70

1^st number: 1 15/60, 2^nd number: 42/70

75/60 + 42/70 is 37/20.

Find the least common denominator or LCM of the two denominators:
LCM of 60 and 70 is 420

Next, find the equivalent fraction of both fractional numbers with denominator 420
For the 1st fraction, since 60 × 7 = 420,
75/60 = 75 × 7/60 × 7 = 525/420
Likewise, for the 2nd fraction, since 70 × 6 = 420,
42/70 = 42 × 6/70 × 6 = 252/420
Add the two like fractions:
525/420 + 252/420 = 525 + 252/420 = 777/420
777/420 simplified gives 37/20
So, 75/60 + 42/70 = 37/20
In mixed form: 117/20

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