Add 15/63 and 21/80
15/63 + 21/80 is 841/1680.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 80 is 5040
Next, find the equivalent fraction of both fractional numbers with denominator 5040 - For the 1st fraction, since 63 × 80 = 5040,
15/63 = 15 × 80/63 × 80 = 1200/5040 - Likewise, for the 2nd fraction, since 80 × 63 = 5040,
21/80 = 21 × 63/80 × 63 = 1323/5040 - Add the two like fractions:
1200/5040 + 1323/5040 = 1200 + 1323/5040 = 2523/5040 - 2523/5040 simplified gives 841/1680
- So, 15/63 + 21/80 = 841/1680
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