Add 18/60 and 45/63
18/60 + 45/63 is 71/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
18/60 = 18 × 21/60 × 21 = 378/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
45/63 = 45 × 20/63 × 20 = 900/1260 - Add the two like fractions:
378/1260 + 900/1260 = 378 + 900/1260 = 1278/1260 - 1278/1260 simplified gives 71/70
- So, 18/60 + 45/63 = 71/70
In mixed form: 11/70
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