Add 72/48 and 21/40
1st number: 1 24/48, 2nd number: 21/40
72/48 + 21/40 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 40 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 48 × 5 = 240,
72/48 = 72 × 5/48 × 5 = 360/240 - Likewise, for the 2nd fraction, since 40 × 6 = 240,
21/40 = 21 × 6/40 × 6 = 126/240 - Add the two like fractions:
360/240 + 126/240 = 360 + 126/240 = 486/240 - 486/240 simplified gives 81/40
- So, 72/48 + 21/40 = 81/40
In mixed form: 21/40
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