Add 12/63 and 42/40
1st number: 12/63, 2nd number: 1 2/40
12/63 + 42/40 is 521/420.
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,
12/63 = 12 × 40/63 × 40 = 480/2520 - Likewise, for the 2nd fraction, since 40 × 63 = 2520,
42/40 = 42 × 63/40 × 63 = 2646/2520 - Add the two like fractions:
480/2520 + 2646/2520 = 480 + 2646/2520 = 3126/2520 - 3126/2520 simplified gives 521/420
- So, 12/63 + 42/40 = 521/420
In mixed form: 1101/420
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