Add 75/63 and 18/40
1st number: 1 12/63, 2nd number: 18/40
75/63 + 18/40 is 689/420.
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,
75/63 = 75 × 40/63 × 40 = 3000/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
18/40 = 18 × 63/40 × 63 = 1134/2520 - Add the two like fractions:
3000/2520 + 1134/2520 = 3000 + 1134/2520 = 4134/2520 - 4134/2520 simplified gives 689/420
- So, 75/63 + 18/40 = 689/420
In mixed form: 1269/420
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