Add 54/30 and 7/40
1st number: 1 24/30, 2nd number: 7/40
54/30 + 7/40 is 79/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 30 × 4 = 120,
54/30 = 54 × 4/30 × 4 = 216/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
7/40 = 7 × 3/40 × 3 = 21/120 - Add the two like fractions:
216/120 + 21/120 = 216 + 21/120 = 237/120 - 237/120 simplified gives 79/40
- So, 54/30 + 7/40 = 79/40
In mixed form: 139/40
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