Add 90/40 and 20/63
1st number: 2 10/40, 2nd number: 20/63
90/40 + 20/63 is 647/252.
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,
90/40 = 90 × 63/40 × 63 = 5670/2520 - Likewise, for the 2nd fraction, since 63 × 40 = 2520,
20/63 = 20 × 40/63 × 40 = 800/2520 - Add the two like fractions:
5670/2520 + 800/2520 = 5670 + 800/2520 = 6470/2520 - 6470/2520 simplified gives 647/252
- So, 90/40 + 20/63 = 647/252
In mixed form: 2143/252
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