Add 90/63 and 63/20
1st number: 1 27/63, 2nd number: 3 3/20
90/63 + 63/20 is 641/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 20 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 63 × 20 = 1260,
90/63 = 90 × 20/63 × 20 = 1800/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
63/20 = 63 × 63/20 × 63 = 3969/1260 - Add the two like fractions:
1800/1260 + 3969/1260 = 1800 + 3969/1260 = 5769/1260 - 5769/1260 simplified gives 641/140
- So, 90/63 + 63/20 = 641/140
In mixed form: 481/140
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