Add 15/84 and 72/40
1st number: 15/84, 2nd number: 1 32/40
15/84 + 72/40 is 277/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 40 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 84 × 10 = 840,
15/84 = 15 × 10/84 × 10 = 150/840 - Likewise, for the 2nd fraction, since 40 × 21 = 840,
72/40 = 72 × 21/40 × 21 = 1512/840 - Add the two like fractions:
150/840 + 1512/840 = 150 + 1512/840 = 1662/840 - 1662/840 simplified gives 277/140
- So, 15/84 + 72/40 = 277/140
In mixed form: 1137/140
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