Add 80/63 and 21/40
1st number: 1 17/63, 2nd number: 21/40
80/63 + 21/40 is 4523/2520.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 40 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 63 × 40 = 2520,
80/63 = 80 × 40/63 × 40 = 3200/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
21/40 = 21 × 63/40 × 63 = 1323/2520 - Add the two like fractions:
3200/2520 + 1323/2520 = 3200 + 1323/2520 = 4523/2520 - So, 80/63 + 21/40 = 4523/2520
In mixed form: 12003/2520
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