Add 84/80 and 21/63
1st number: 1 4/80, 2nd number: 21/63
84/80 + 21/63 is 83/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 63 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 80 × 63 = 5040,
84/80 = 84 × 63/80 × 63 = 5292/5040 - Likewise, for the 2nd fraction, since 63 × 80 = 5040,
21/63 = 21 × 80/63 × 80 = 1680/5040 - Add the two like fractions:
5292/5040 + 1680/5040 = 5292 + 1680/5040 = 6972/5040 - 6972/5040 simplified gives 83/60
- So, 84/80 + 21/63 = 83/60
In mixed form: 123/60
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