Add 72/20 and 90/48
1st number: 3 12/20, 2nd number: 1 42/48
72/20 + 90/48 is 219/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 48 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 20 × 12 = 240,
72/20 = 72 × 12/20 × 12 = 864/240 - Likewise, for the 2nd fraction, since 48 × 5 = 240,
90/48 = 90 × 5/48 × 5 = 450/240 - Add the two like fractions:
864/240 + 450/240 = 864 + 450/240 = 1314/240 - 1314/240 simplified gives 219/40
- So, 72/20 + 90/48 = 219/40
In mixed form: 519/40
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