Add 70/60 and 21/63
1st number: 1 10/60, 2nd number: 21/63
70/60 + 21/63 is 3/2.
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,
70/60 = 70 × 21/60 × 21 = 1470/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
21/63 = 21 × 20/63 × 20 = 420/1260 - Add the two like fractions:
1470/1260 + 420/1260 = 1470 + 420/1260 = 1890/1260 - 1890/1260 simplified gives 3/2
- So, 70/60 + 21/63 = 3/2
In mixed form: 11/2
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