Add 90/60 and 12/63
1st number: 1 30/60, 2nd number: 12/63
90/60 + 12/63 is 71/42.
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,
90/60 = 90 × 21/60 × 21 = 1890/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
12/63 = 12 × 20/63 × 20 = 240/1260 - Add the two like fractions:
1890/1260 + 240/1260 = 1890 + 240/1260 = 2130/1260 - 2130/1260 simplified gives 71/42
- So, 90/60 + 12/63 = 71/42
In mixed form: 129/42
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