Add 18/70 and 54/60
18/70 + 54/60 is 81/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
18/70 = 18 × 6/70 × 6 = 108/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
54/60 = 54 × 7/60 × 7 = 378/420 - Add the two like fractions:
108/420 + 378/420 = 108 + 378/420 = 486/420 - 486/420 simplified gives 81/70
- So, 18/70 + 54/60 = 81/70
In mixed form: 111/70
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