Add 72/42 and 18/60
1st number: 1 30/42, 2nd number: 18/60
72/42 + 18/60 is 141/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 42 × 10 = 420,
72/42 = 72 × 10/42 × 10 = 720/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
18/60 = 18 × 7/60 × 7 = 126/420 - Add the two like fractions:
720/420 + 126/420 = 720 + 126/420 = 846/420 - 846/420 simplified gives 141/70
- So, 72/42 + 18/60 = 141/70
In mixed form: 21/70
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