Add 72/90 and 49/40
1st number: 72/90, 2nd number: 1 9/40
72/90 + 49/40 is 81/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 40 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
72/90 = 72 × 4/90 × 4 = 288/360 - Likewise, for the 2nd fraction, since 40 × 9 = 360,
49/40 = 49 × 9/40 × 9 = 441/360 - Add the two like fractions:
288/360 + 441/360 = 288 + 441/360 = 729/360 - 729/360 simplified gives 81/40
- So, 72/90 + 49/40 = 81/40
In mixed form: 21/40
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