Add 90/25 and 7/20
1st number: 3 15/25, 2nd number: 7/20
90/25 + 7/20 is 79/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 20 is 100
Next, find the equivalent fraction of both fractional numbers with denominator 100 - For the 1st fraction, since 25 × 4 = 100,
90/25 = 90 × 4/25 × 4 = 360/100 - Likewise, for the 2nd fraction, since 20 × 5 = 100,
7/20 = 7 × 5/20 × 5 = 35/100 - Add the two like fractions:
360/100 + 35/100 = 360 + 35/100 = 395/100 - 395/100 simplified gives 79/20
- So, 90/25 + 7/20 = 79/20
In mixed form: 319/20
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