Add 72/63 and 90/20
1st number: 1 9/63, 2nd number: 4 10/20
72/63 + 90/20 is 79/14.
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,
72/63 = 72 × 20/63 × 20 = 1440/1260 - Likewise, for the 2nd fraction, since 20 × 63 = 1260,
90/20 = 90 × 63/20 × 63 = 5670/1260 - Add the two like fractions:
1440/1260 + 5670/1260 = 1440 + 5670/1260 = 7110/1260 - 7110/1260 simplified gives 79/14
- So, 72/63 + 90/20 = 79/14
In mixed form: 59/14
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