Add 18/60 and 15/70
18/60 + 15/70 is 18/35.
Steps for adding fractions
- 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,
18/60 = 18 × 7/60 × 7 = 126/420 - Likewise, for the 2nd fraction, since 70 × 6 = 420,
15/70 = 15 × 6/70 × 6 = 90/420 - Add the two like fractions:
126/420 + 90/420 = 126 + 90/420 = 216/420 - 216/420 simplified gives 18/35
- So, 18/60 + 15/70 = 18/35
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