Add 12/40 and 80/63
1st number: 12/40, 2nd number: 1 17/63
12/40 + 80/63 is 989/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 63 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 40 × 63 = 2520,
12/40 = 12 × 63/40 × 63 = 756/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
80/63 = 80 × 40/63 × 40 = 3200/2520 - Add the two like fractions:
756/2520 + 3200/2520 = 756 + 3200/2520 = 3956/2520 - 3956/2520 simplified gives 989/630
- So, 12/40 + 80/63 = 989/630
In mixed form: 1359/630
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