Add 72/70 and 21/54
1st number: 1 2/70, 2nd number: 21/54
72/70 + 21/54 is 893/630.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
72/70 = 72 × 27/70 × 27 = 1944/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
21/54 = 21 × 35/54 × 35 = 735/1890 - Add the two like fractions:
1944/1890 + 735/1890 = 1944 + 735/1890 = 2679/1890 - 2679/1890 simplified gives 893/630
- So, 72/70 + 21/54 = 893/630
In mixed form: 1263/630
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